HP 35s SURVEY PROGRAM STORES, EDITS AND USES
P,N,E,Z (P,N,E,H) POINTS!
Whether you prefer to have a new, preprogrammed and readytogo HP
35s show up at your door, or send in your HP 35s for programming, or want to enter the programs into your HP
35s yourself, we have a solution that's right for you.
HP 35s
Easycogo Survey Program
Automated Menu
Area/Perimeter by Coordinates
Angle (Azimuth) add/subtract
Angle Traverse/Sideshot
Bearing Traverse/Sideshot
Road/Ditch Volumes
Road Grades
Horizontal CurvesCircular & Spiral
Intersections (Bearings/Distances)
Inverse/Stakeout
Differential Leveling
Store/View/Use PNEH points
Polar/Rectangular Conversions
Vertical Traverse/Stakeout
Triangles (All Solutions)
Vertical Curves
Easycogo Survey Equations
Astronomic Observations
Int'l/Survey Ft Conversion
Horizontal Curves
Loans/Depreciation
Ellipse/Ellipsoid
Photogrammetry
Plane/Ground Conversions
Triangles
Spiral Curves
Stadia
Steel Tape Corrections
SwingonLine Area Calc.
Vertical Curves
Volumes

Easycogo HydrologyHydraulics Program
Hydraulic Radius
Open Channel Velocity & Flow
(for trapezoid, box or 'V' channels,
or misc. channel)
Pipe Diameter
Pipe Equivalent Diameter
Pipe Velocity & Flow (Full)
Weir Flow
Weir Head
Easycogo HydrologyHydraulics Equations
Hydraulic Radius
Open Channel Velocity & Flow
(for misc. channel)
Pipe Equivalent Diameter
Pipe Velocity & Flow (Full)
Trapezoid Channel Velocity & Flow
(for trapezoid, box or 'V' channel)
Click headings to view more details.



NEW, PREPROGRAMMED HP 35s with copy of instructions:
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Program my HP 35s with: 


I WANT IT ALL! Easycogo SURVEY AND
HYDROLOGY
HYDRAULICS PROGRAMS AND EQUATIONS for $689 

Easycogo SURVEY PROGRAMS AND EQUATIONS for $459 

~OR~ 
I want to
CUSTOMIZE my programmed HP 35s
by 

FIRST 



starting with the programming
base cost of $70 (required) 
THEN 
adding the programs and/or
equations of my choice: 

Easycogo SURVEY PROGRAM for $329 

Easycogo SURVEY EQUATIONS for $99 

Easycogo HYDROLOGYHYDRAULICS PROGRAM for $199 

Easycogo HYDROLOGYHYDRAULICS EQUATIONS for $99 
When we
receive your order, we will email the appropriate information to you
(our shipping
address, etc), then you can ship your calculator to us by whatever
carrier option you prefer.
The shipping option you specify in checkout is how we will ship the
calculator back to you. 

~OPTIONAL~ 



Please email almost free backup PDF's of my
ordered programs
and/or equations for $10 

...OR PROGRAMMING INSTRUCTIONS FOR HP 35S ONLY:
I can program my calculator myself
(***see estimated programming times below). Please...


Email PDF of instructions only: 


Easycogo SURVEY PROGRAM for $89 

Easycogo SURVEY EQUATIONS for $29 

Easycogo HYDROLOGYHYDRAULICS PROGRAM for $69 

Easycogo HYDROLOGYHYDRAULICS EQUATIONS for $29 


Mail print of instructions only: 


Easycogo SURVEY PROGRAM for $89 

Easycogo SURVEY EQUATIONS for $29 

Easycogo HYDROLOGYHYDRAULICS PROGRAM for $69 

Easycogo HYDROLOGYHYDRAULICS EQUATIONS for $29 

HP 35s features and information (pdf brochure on HP site)
What you get:
The Easycogo Survey Program
for the HP 35s and the Easycogo Survey Equations
for the HP 35s include all instructions and information needed to program the
HP 35s, simple stepbystep instructions for using the programs and equations, along with "realworld" type
sample maps and problems ideal
for program testing, studying, practicing and training. All printed sheets are
3hole punched for easy placement into a 3ring binder. All preprogrammed
calculator orders also include one FREE set of backup batteries. All options include technical support by email.
USPS standard shipping is FREE in continental US.
Questions before you order? Please check our
Support page or feel free to contact us at
office@easycogo.com
Easycogo Survey Program for the HP 35s
The Easycogo Survey Program contains simple,
complete descriptions of all individual programs and easy stepbystep RPN mode instructions to enter all of the
programs, which you won't need to do if you purchase the preprogrammed calculator. The
entire Easycogo Survey Program is configured to display simple, obvious, survey
English text messages for each piece of data before the appropriate data input
prompt or output display, so you don't need to remember any obscure codes or
values, as you can see in any of the program demo
videos. Possibilities for application of the included programs are
endless, though a brief summary of the program functionality is as follows:

Menu of all included programs, listed in alphabetical order and
automatically linked to the appropriate program. No more trying to remember
which letter runs the program you need.

Area By Coordinates
and/or stored points for displaying the
area within any coordinated figure bounded by lines. The perimeter of the
figure (or length of traverse) is displayed, along with the area in square
feet and acres. Also useful for determining areas of figures with curved sides
when used with included horizontal curve calculator, or for finding the top
and bottom areas of an odd shaped pond or pile for easy volume calculation by average end
area (a pond/pile volume equation is available in the
Easycogo Survey
Equations).

Azimuth (Any Angle) Add/Subtract is setup like a simple conversion tool
to enable quick, multiple HMS format angle additions and/or subtractions with
only a couple button presses.

Traverse and Sideshot Horizontally by known bearing or turned angle (right or left with automatic recall or
integrated inverse option for back azimuth) from known coordinates and/or
stored points, displaying forward azimuth and coordinates and, if
desired, carry trig levels with the included and integrated Slope Traverse program
and store numbered points with Northing, Easting, and Elevation data.
The included option to "stay" or "move up" easily enables
traverse or sideshot type entries.

Traverse
and Sideshot Vertically within or without horizontal traverse with the
optionally integrated Slope Traverse program for trig
leveling, including input for reference elevation from stored points and instrument and rod height if desired, along with slope
distance and zenith angle, displaying the horizontal distance and foresight point elevation.
The included option to "stay" or "move up" easily enables traverse or sideshot type entries.

Grades from reference or stored point elevation and stations or distances can be used to
determine unknown elevations at any station or distance. Also useful for determining
elevations from crosssection information or interpolating elevations along
any grade from a known elevation.

Horizontal Curve calculator
for CIRCULAR CURVE and/or SPIRAL CURVE calculations.
Circular Curve displays
virtually every aspect of the circular curve from only two known variables,
the four optional combinations being: Radius and Internal Angle (Delta),
Radius and Arc Length, Internal Angle and Arc Length, or Arc Length and
Degree of Curvature. Displayed results include the radius, arc length,
internal angle, tangent,
long chord, PC to PT deflection angle from tangent, degree of curvature (arc
definition), mid ordinate, external ordinate, and the areas within the sector, fillet and
segment. View Demo
Spiral Curve displays virtually every aspect of the spiral curve from
only the length of the spiral and the radius of the adjacent circular arc,
including the spiral’s internal angle, A value (flatness), tangent
distance to the SC, tangent offset of the SC, deflection angle from the
tangent to the SC (tangentchord angle), chord distance, long tangent
distance, short tangent distance, tangent distance to the shifted circular
PC, tangent offset to the shifted circular PC, and the velocity (speed)
rating in MPH, with the option to display the full SpiralCurveSpiral (SCS)
tangent length and all associated circular curve data as listed above,
from only the SCS tangent deflection angle.

Complete Intersection Solutions including
intersections from two known coordinates and/or stored points by BearingBearing; BearingDistance; and DistanceDistance.
If using azimuths, simple azimuth to bearing conversions can be done during
the program with a few extra keystrokes. Coordinates of the intersection
point or points are displayed and optionally stored. View Demo

Inverse between known coordinates
and/or stored points to display
the bearing, distance and azimuth in the same direction the points are entered.
The included option to "stay" or "move up" also enables easy
traversetype inversing or sideshot type stakeout of any
number of coordinates and/or stored points by inversing a backsight for a
reference azimuth, then inversing desired coordinates and/or stored points for forward azimuth and
distance. Use with included Slope Traverse program for easy inclusion
of elevation
staking. View Demo

Leveling tables can be easily completed
by using a stored point or entering the reference mark elevation and successive back and fore rod readings,
having the instrument height and turning point elevations successively
displayed, along with the totals of + and  columns and the elevation
difference from the original reference mark being displayed at each turn for
easy error analysis.

Numbered Points with Northing, Easting, and Elevation data
(similar to PNEH format) can be stored, copied, edited, and viewed. No
dealing with any complex numbers! All values are displayed as simple
numbers, and many of the programs have integrated options to use and/or store
point data. Approximately 350 points can be stored with the entire Easycogo Survey
Program installed (250 points with Easycogo Survey Equations also
installed, or 100
points with the complete set of Easycogo Survey and
HydrologyHydraulics Programs and Equations.

Polar Conversion that was
left off of the HP 35s in its typical form is included in the Easycogo Survey Program for the
HP 35s, with enhanced surveying functionality. Keeping with the theme of
the Easycogo Survey Program, simple text prompts for vertical and
horizontal distances result in a vertical angle (in HMS format instead of
decimal degrees), and slope distance.

Rectangular Conversion, also
left off of the HP 35s in its typical form, is included in the Easycogo Survey Program for the
HP 35s, with enhanced surveying functionality. Also keeping with the
theme of the Easycogo Survey Program, simple text prompts for a vertical
angle (in HMS format instead of decimal degrees) and slope distance result
in vertical and horizontal distances.

Complete Triangle Solutions for known AreaAngleAngle; AngleSideAngle;
SideAngleAngle; SideAngleSide; SideSideAngle; and SideSideSide. All
Triangle sides and angles are displayed, along with the triangle area in
square feet and acres. View Demo

Vertical Curve information is easily displayed following input of basic curve
parameters of curve beginning station and elevation (or use
stored point elevation), in and out vertical tangent grades and
length of curve. Information displayed includes the PVT station,
PVI station and elevation, K value, high point station if a
crest curve or low point station if a sag curve, followed by a
repeating prompt for input of any station for display of its
oncurve elevation and the grade of the curve at the entered
station (useful for calculating appropriate in/out grades for
return radii), the initial default being the high or low point
station, as applicable. View Demo

Volume of roadway or ditch
cut or fill by station or distance, with the
ability to enter multiple consecutive cross sections for more complex
solutions. The length and volume (cubic feet and cubic yards) of each section
is displayed, along with the accumulated length and volume (also in cubic feet
and cubic yards). (uses average end area formula)
AS IF THAT WASN'T ENOUGH: Much
of the input and resultant data from most of the individual programs will be
automatically saved and displayed for optional use in following appropriate
input prompts within that program and other subsequently executed programs (until revised by
another similar input or calculation), or for easy recall by the displayed
alphabetical storage label, even if the calculator was turned off.
Realworld example: You used Inverse to determine the azimuth from point 1 to
point 2 before being interrupted by a client. Now you are finally able to
continue the job and decide to begin traversing from point 2 to point 3. Since
point 3 was located by zenith and slope distance, you select the slope traverse
option and enter the appropriate vertical data. You then select the
Traverse Horizontal option, in which the prompt for a backsight reference azimuth will automatically
display the azimuth from yesterday's inverse for optional acceptance, and the
prompt for coordinates to traverse from will automatically show the coordinates
of yesterday's input coordinates for point 2. Additionally, the prompt for the
horizontal distance to point 3 will be automatically carried over from Slope
Traverse and displayed for optional acceptance. Continuing the traverse to point
4 will have much of the appropriate information "moved up" for easy acceptance
and continued traversing.
Back to
Purchase Options for the HP 35s
Easycogo Survey Equations for the HP 35s
The Easycogo Survey Equations
program contains contains simple, complete descriptions of all individual
equations and their variables, along with easy stepbystep instructions to enter all of the equations,
which you won't need to bother with if you purchase the preprogrammed calculator. The entire Easycogo
Survey Equations program is configured so that the upper display register will show an easily
identifiable title of the
equation, while the lower display register will show the actual equation. The
equations are programmed in alphabetical order for quick and easy access. The included equations are as follows:

AstronomyAltitude MethodEast (AM): Solve for easterly sun/star azimuth, altitude angle, declination angle,
or latitude angle (all in
HMS format).

AstronomyAltitude MethodWest (PM): Solve for westerly sun/star azimuth, altitude angle, declination angle,
or latitude angle (all
in HMS format).

AstronomyHour Angle MethodHA>180East: Solve for bearing to sun/star, local hour angle of sun/star,
declination angle, or latitude angle (all in HMS format).

AstronomyHour Angle MethodHA<180West: Solve for bearing to sun/star, local hour angle of sun/star,
declination angle, or latitude angle (all in HMS format).

ConversionUS Survey feet<>Int'l
feet: Convert between US Survey feet and International feet.

Curve DegreeArc Definition: Solve for degree of curvature (in HMS format) or radius using the arc
definition.

Curve DegreeChord
Definition: Solve for degree of curvature (in HMS format) or radius using the chord
definition.

Curve Length: Solve for internal
angle (in HMS format), length of arc, or radius.

Depreciation: Solve for
depreciation (straight line), cost of item, future value, or years of
depreciation.

Ellipse Area: Solve for ellipse
area, length of semimajor axis, or length of semiminor axis.

Ellipse Flattening: Solve for ellipse
flattening, length of semimajor axis, or length of semiminor axis.

GradePercent: Solve for beginning elevation,
distance between points, end elevation, or percent of grade.

Loan Payments: Solve for monthly payment amount, future value (balloon payment), interest
rate (APR), loan amount, or number of payments.

PhotogrammetryAngular
Field of View: Solve for angular field of view (in HMS format), focal length,
height of photo, or width of photo.

PhotogrammetryRelief
Displacement: Solve for relief displacement, flying height, project datum, height of
object above project datum, or radial distance from principal point to object.

PlaneAzimuth Conversion (Grid<>Ground): Solve for convergence angle (aka: declination or theta angle),
plane (grid) azimuth, or true azimuth (all in
HMS format).

PlaneCoordinate Conversion (Grid<>Ground):
Solve for ground coordinate, offset value, plane coordinate, or
scale (combined grid) factor.

Right TriangleAngle: Solve for angle (in
HMS format), side adjacent to angle, or side opposite angle.

Right TriangleSide: Solve for either side adjacent to right angle, or side opposite
(hypotenuse).

SpiralDeflection Angle to Point on Spiral: Solve for the deflection angle from the tangent to a point on the
spiral (POS), length of spiral from the TangentSpiral (TS) point to the
POS, total length of spiral, or radius of the adjacent circular curve.

SpiralInternal Angle: Solve for the internal angle (delta angle) of spiral, length of
spiral, or radius of the adjacent circular curve.

SpiralVelocity (Speed) in MPH: Solve for length of spiral, radius of adjacent circular curve, or design
velocity (speed) for vehicles.

StadiaDistance (Horiz) to Foresight: Solve for horizontal distance to foresight point, stadia interval
factor, stadia interval (rod intercept), or vertical angle to foresight (in HMS format).

StadiaElevation at Foresight: Solve for elevation at foresight point, stadia interval factor,
stadia interval (rod intercept), instrument measureup (hi), occupied
point elevation, rod height, or vertical angle to foresight (in HMS format).

Tape Calibration Correction: Solve for calibration correction, distance measured, length of tape
(as marked), or actual length of calibrated tape.

Tape Sag Correction: Solve for sag correction, length of unsupported span, pull in
field, or weight of tape.

Tape Temperature Correction: Solve for temperature correction, distance measured, calibration
temperature, or field temperature.

Tape Tension Correction: Solve for tension correction, crosssectional area of tape,
distance measured, modulus of elasticity of tape, pull in field, or pull
during calibration.

TriangleLaw of
Cosines: Solve for any angle (in HMS format), or any one of the three sides.

TriangleLaw of Sines: Solve for any angle (in HMS format) or opposite side if another angle (in HMS format) and opposite
side are known.

TriangleSize (also Swing on Line): Solve for any angle (in HMS format) between two adjacent sides, one of the adjacent
sides, or the area of the triangle.

Swing on Line: Solve for the unknown
distance along a known line for a specific area, using the distance
between two known points and the angle between both known lines.

Vertical Curve: Solve for beginning (PVC) elevation, horizontal distance from PVC
to a point on curve (POC), elevation of POC, grade of vertical tangent in,
grade of vertical tangent out, or total length of vertical curve. View Demo

Volume of Cone: Solve for cone volume, height, or diameter of base.

Volume of Cylinder: Solve for cylinder volume, height, or diameter.

Volume of Pond or Pile: Solve for pond or pile volume, bottom area, top area, or depth.
All of the input and
resultant data from any equation will be automatically saved under the
indicated alphabetical storage label and displayed for optional use in
following appropriate input prompts upon rerunning the same or another
equation and even subsequently executed programs if the same alphabetical
storage label is used (until revised by another similar input or
calculation), or for easy recall by the displayed alphabetical storage
label, even if the calculator was turned off. Easily test variations of the
same equation by only changing desired values and quickly accepting any
number of previously entered or derived values.
Back to
Purchase Options for the HP 35s
Easycogo HydrologyHydraulics Program for the HP 35s
The Easycogo HydrologyHydraulics Program contains
a simple,
complete description of all individual subprograms and easy stepbystep RPN mode instructions to enter all of the
programs, which you won't need to do if you purchase the preprogrammed calculator. The
entire Easycogo HydrologyHydraulics Program is configured to display simple, obvious, survey
English text messages for each piece of data before the appropriate data input
prompt or output display, so you don't need to remember any obscure codes or
values, as you can see in any of the program demonstration
videos. A brief summary of the program functionality is as follows:

Menu of all included subprograms, listed in alphabetical order and
automatically linked to the appropriate subprogram. No more trying to remember
which letter runs the program you need.

Hydraulic Radius from either
pipe diameter, trapezoid channel, box channel, 'V' channel, crosssection area or wetted
perimeter.

Open Channel Velocity (FS) &
Flow (CFS) from Manning's N, hydraulic radius, and grade (option to
run integrated Hydraulic Radius program for value from either trapezoid
channel, box channel, 'V' channel, crosssection area or wetted
perimeter).

Pipe Diameter from flow (CFS), Manning's N and grade.

Pipe Equivalent Diameter total from unlimited number of pipes.

Pipe Velocity (FS) & Flow
(CFS) (Full) from pipe diameter, Manning's N and grade.

Weir Flow (CFS) from weir
head for VNotch (22.5, 45, 60, and 90 degree). Also enter weir length for
Broadcrested and Cipolletti.

Weir Head from weir flow (CFS)
for VNotch (22.5, 45, 60, and 90 degree). Also enter weir length for
Broadcrested and Cipolletti.
Back to
Purchase Options for the HP 35s
Easycogo
HydrologyHydraulics Equations for the HP 35s
The Easycogo
HydrologyHydraulics Equations
program contains simple, complete descriptions of all individual
equations and their variables, along with easy stepbystep instructions to enter all of the equations,
which you won't need to bother with if you purchase the preprogrammed calculator. The entire Easycogo HydrologyHydraulics Equations program is configured so that the upper display register will show an easily
identifiable title of the
equation, while the lower display register will show the actual equation. The
equations are programmed in alphabetical order for quick and easy access. The included equations are as follows:

Channel FlowTrapezoid, Box or
'V' channel: Solve for bottom width, depth of flow, flow (CFS), left side
slope, right side slope, coefficient of roughness (Manning's 'N'), or
grade of water surface.

Channel VelocityTrapezoid, Box or
'V' channel: Solve for bottom width, depth of flow, left side slope,
right side slope, coefficient of roughness (Manning's 'N'), grade of water
surface, or velocity (FS).

Open Channel Flow: Solve for
crosssectional area of flow, flow (CFS), coefficient of roughness
(Manning's 'N'), wetted perimeter, or grade of water surface.

Hydraulic Radius: Solve for
crosssectional area of flow, wetted perimeter, or hydraulic radius.

Open Channel Velocity: Solve
for crosssectional area of flow, coefficient of roughness (Manning's
'N'), wetted perimeter, grade of water surface, or velocity (FS).

Pipe Equivalent Diameter:
Solve for one of up to 4 pipe diameters, or the total equivalent diameter.

Pipe Flow (Full): Solve for
pipe diameter, flow (CFS), coefficient of roughness (Manning's 'N'), or
grade of pipe.

Pipe Velocity (Full): Solve
for pipe diameter, coefficient of roughness (Manning's 'N'), grade of
pipe, or velocity (FS).
Back to
Purchase Options for the HP 35s
Emailed items will be sent to the email address used for your
order.
*The new calculator is only removed from the box for programming, then replaced
and sent to you with all original package contents.
**Since the Easycogo Survey Program requires most (HP35) or all (HP33) of the entire program stack, you will
need to clear it of any program lines, or execute the 'ClearAll' function to
restore it to factory settings. Note that using the 'ClearAll' function will
also clear the equation stack.
***I understand that the
programming process is a manual input process that can be stopped and resumed at
any point. I also understand that, not including the time spent learning to
program, it will take at least 4 to
8 hours to completely input the Easycogo Survey Program, 1 to 2
hours to completely input the Easycogo Survey Equations, 1 to
2 hours to completely input the Easycogo HydrologyHydraulics Program, and 1 to 2
hours to completely input the Easycogo HydrologyHydraulics Equations, and though portions of
each will function before completion of the input process, they will not function
completely as indicated until their input process is finished.
Prices are subject to change without notice. Only purchases in Washington State are subject to your local sales tax.
Please read our liability, shipping and return
policies.
Visit our Links page for the HP 35s User's Manual, free
PDF viewer, and other
useful information.
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