[thelist] PHP: What does #IND mean?

jon steele jjsteele22 at yahoo.com
Wed Oct 17 18:55:50 CDT 2001


Thanks Joshua,

Would this work?

pow(pow(5.8,2),1/3);

So manually telling it: square then cube root...or is the problem
fractional exponents?

Are there any other math limitations in php?

This is kinda frustrating... :(

Jon

--- Joshua Olson <joshua at alphashop.com> wrote:
> It's crashing on pow((-5.8-4),(2/3))
> 
> This means you cannot take the 2/3 power of a negative number.  We
> all know
> from basic math that you can do it, simply square the number first
> and take
> the cubic root.  But, the processing engine is failing, unfortunately
> because of the way it validates the POW statement.
> 
> Excel fails on this too, only you write it (-5.8-4)^(2/3) in excel,
> and it
> gives #NUM, which is the same error, essentially.
> 
> Good luck,
> -joshua
> 
> ----- Original Message -----
> From: "jon steele" <jjsteele22 at yahoo.com>
> Subject: [thelist] PHP: What does #IND mean?
> 
> 
> : Hi,
> :
> : I am performing some math with php, and I am getting #IND in a
> result
> : which should be a real number.
> :
> : For example:
> :
> : pow(-5.8,(1/3)) * pow((-5.8-4),(2/3)) = -1.#IND
> :
> : What is this?
> 
> 
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