blitz-research
67 lines
1.4 KiB
HTML
67 lines
1.4 KiB
HTML
<html>
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<title>Blitz3D Docs</title>
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<link rel=stylesheet href=../css/commands.css type=text/css>
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<body>
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<h1>Exp# ( x# )</h1>
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<h1>Parameters</h1>
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<table>
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x = any number.
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</td>
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<h1>Description</h1>
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This is e^x where e = 2.71828...
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<br />
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For the curious, e is defined by the infinite sum:
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2 + 1/(2) + 1/(2*3) + 1/(2*3*4) + 1/(2*3*4*5) + ...
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See also Log()
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</td>
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</tr>
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</table>
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<h1><a href=../2d_examples/Exp.bb>Example</a></h1>
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; Exp example
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; Exp(x) is the same as e^x.
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; Actually, due to the approximate nature of floating point arithmetic
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; these will not be exactly equal. But in the following example
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; the difference is so small you can't see it.
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e# = 2.71828182845905 ; over-specified, might help and can't hurt.
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x# = .125 ; = 1/8
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Print " x Exp(x) e^x "
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Print "======= ========= ========="
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For k = 1 To 7
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Write " " + LSet( x , 7 )
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Write RSet( Exp( x ), 10 )
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Print RSet( e^x , 12 )
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x = 2 * x
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Next
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WaitKey() : End
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</td>
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</table>
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<br>
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<a target=_top href=../index.htm>Index</a><br>
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<br>
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Click <a href=http://www.blitzbasic.co.nz/b3ddocs/command.php?name=Exp&ref=comments target=_blank>here</a> to view the latest version of this page online</body>
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</html>
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