trigonometry

  1. M

    Globe Coordinate Prediction

    Hello my fellow excel people, I'm trying to predict latitude and longitude coordinates within 2 predefined points. If this was a 2D problem then I'm sweet, but it gets tricky with the curvature of the earth (anti flat earther). Once point A & B have been set i want to basically be able to...
  2. W

    Formula to measure length of pipeline within specific depth brackets

    Hi all, I am struggling with a formula on Excel and was hoping you could help me with this. I work for a construction company and one of the things we do is the installation of manholes and pipelines. We get paid a rate for pipelines between 0 and 1.5 meters deep. Then there is a separate rate...
  3. J

    UDF - Function Address to Values - Trig functions issues?

    I recently put together a UDF function similar to the native FORMULATEXT() function in excel. Instead of displaying the formula with the referenced cell addresses, the UDF displays the formula with the referenced cell values. So far, it seems to be functioning like I want it to, for now (only...
  4. H

    Astronomy

    Could you direct me toward some class modules (VBA or VB) to calculate the moon ( and planets ) rise set altitude azimuth for locations ( Lat, Lng, Elevation ). Most I can find are about 1998 models using UDF 's on worksheets. Need to graphically present these for high school students.
  5. H

    Speed of worksheet functions

    why does worksheetfunction.acos(c) take about 10 times the time of the atn( sqr(1-c*c)/c)) method :eeek::eeek:
  6. T

    Line intersection - with a difference

    I have been working on a problem and through all of my research I have been unable to find an existing resolution. I do not have the required math knowledge to produce an elegant solution. There are several examples of working (and very elegant) line - line intersections with either complete...
  7. Y

    Trigonometry Question

    I have been pulling my hair out trying to enter this equation and have no idea how to get this to work properly or what is the right format to get the answer out of Excel. 365 COS (130)

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