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DarkBASIC Discussion / al kashi's theorem

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RYD
16
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Joined: 29th Apr 2008
Location: realspace
Posted: 8th Jul 2009 07:06
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can somewhone explain why this doesnt work
its to calculate an angle from the lenth of three sides


ARM YOURSELF WITH KNOLEGE
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BN2 Productions
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Joined: 22nd Jan 2004
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Posted: 8th Jul 2009 08:26
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That is probably your problem. Don't forget: Computers are inherently stupid.They will do EXACTLY What you well them so for instance:

div#=hay#/2*b#

Will be read as

div#=(hay#/2)*b#

Introducing the correct parenthesis should correct the problem (though I haven't tested that).
So this is what you want:
hay#=(a#*a#)+(b#*b#)-(c#*c#)
div#=hay#/(2.0*b#)

Also notice the 2.0 . It could be getting confused with an integer on the bottom. 2.0 is a float and will maintain it throughout the calculations (again, I don't know if it is changing anything but it can't hurt)

Hope this helps

Great Quote:
"Time...LINE??? Time isn't made out of lines...it is made out of circles. That is why clocks are round!" -Caboose
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RYD
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Joined: 29th Apr 2008
Location: realspace
Posted: 8th Jul 2009 22:48
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whell i solved the problem now ,
here it is

i'll be putting it in the code base

ARM YOURSELF WITH KNOLEGE
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