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Using the Math RTL

cm6087
cm6087 asked
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Last Modified: 2010-04-04
I need to use the function arcsin(), which according to the help file exists in the unit Math.  I have tried putting Math in the uses clause at the top of my program but this just produces the error

File not found: 'Math.pas'

Math.pas does not exist on my hard disk at all so I am obviously doing something wrong.

I am using Delphi 2.0

Thanks for your help !!
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 Assuming that your uses clause is correct then Delphi should find the Math.Pas file if it exists on the search path, so either your search path is incomplete or the Math.pas file does not exist.
  Try:

  Run 'Find' from your start menu on 'Math.Pas' it should locate the Math.Pas File (usually in C:\ProgramFiles\Borland\Delphi2.0\Source\RTL\SYS) if you cannot find this file then it is not surprising that Delphi cannot. Reinstall Delphi and it should appear, if not then you've got a big problem, contact Borland.
  If you do find the file than the problem is probably that it is not on the search path for some reason. You can add the directory where the file is located to the search path by going to the Directories/Conditionals tab of the Project/Options Menu. Enter the directory into the Search Path Edit Box.
  Although this last option will get your project to compile, it is curious that the Math.Pas file is not where it should be. For this reason my advice would be to reinstall Delphi, having completely removed the previous installation first.

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