The Museum of HP Calculators

HP Forum Archive 21

 HP 32S-II Vertical Curve ProgramMessage #1 Posted by Ron Cardwell on 15 May 2013, 1:27 p.m. I new a guy from many years ago who wrote a program to solve for the elevation on a vertical curve, given station, elevation at BVC. Grade in and grade out, if you enter station to solve for, the elevation would be given. I forgot his name (its been 15 years and I live in a different state now) Does anyone have a program that they have written?

 Re: HP 32S-II Vertical Curve ProgramMessage #2 Posted by Eddie W. Shore on 15 May 2013, 4:02 p.m.,in response to message #1 by Ron Cardwell If you know the horizontal length of the curve: ```LBL E INPUT I INPUT G INPUT H INPUT X * + INPUT H RCL- G 2 / INPUT L / RCL X x^2 * + RTN Where: LBL E for elevation I = initial elevation (BVC) G = grade in as a decimal X = location of the station H = grade out as a decimal L = total horizontal length of the vertical curve ``` Hope this helps, Eddie.

 Re: HP 32S-II Vertical Curve ProgramMessage #3 Posted by Thomas Klemm on 20 May 2013, 7:54 a.m.,in response to message #2 by Eddie W. Shore Why do we have to INPUT H twice? Did you ever run that program? I think the correct formula to use is: E= I + G•X + H•(L - X) Kind regards Thomas

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