Hello all,
I ported a algorithm from JavaScript to PHP and noticed that PHP outputs a
different result than JS. For example:
t = 0.6255264658909423
f = 20.5
ln = -6.983
d2r = 0.017453292519943295
$ra = (((6.6460656 + 2400.0513 * $t + 2.58e-5 * $t * $t +
[snip]
How could that be?! 1:1 the same code but different outputs? Is this a
PHP-bug? :-?
[/snip]
*feelin' kinda' smart arsed today, if no one noticed*
Maybe it was a JavaScipt bug all along ? ;)
Actually I am worried about the order of operations and encapsulation in
the equation in $ra,
* Thus wrote Mario Werner ([EMAIL PROTECTED]):
I ported a algorithm from JavaScript to PHP and noticed that PHP outputs a
different result than JS. For example:
t = 0.6255264658909423
f = 20.5
ln = -6.983
d2r = 0.017453292519943295
$ra =
Without spending a lot of time looking at your problem I would speculate
this is the result of round off error.
What is roundoff error you ask?
Well the number 0.6255264658909423 does not designate
0.6255264658909423... but 0.6255264658909423 and some
fraction that could not be
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