You can substitute the copysign function with this ugly thing:
[expr $f1*if($f2==0, 1, $f2/abs($f2))]
cheers, jan
On 06/07/2015 10:39 PM, Jan Baumgart wrote:
It's spelled "copysig" in expr. But I couldn't get it to work.
copysig in expr only takes one argument, whereas the c math function takes two arguments: float copysignf(float x, float y);
It returns the absolute value of x with the sign of y.
Smells like a bug to me...
cheers, Jan
On 06/07/2015 09:57 PM, Alexandre Torres Porres wrote:
hi there, I was checking the source of expr (find it attached) and saw this "copysign" function that I needed for a formula, but I can't get it to work/load.
I'm trying something like [expr copysign($f1)] and it's not happening. The expr manual page in http://yadegari.org/expr/expr.html tells about this function as well, here it is:
copysign() 1 copy sign of a number(added in version 0.4)
So it seems I'm supposedly doing the right thing... is it a bug? I'm on extended 0.42 and it says that it's expr version 0.4 when it loads.
cheers
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