PDL::Complex

PDL::Complex can handle complex numbers.
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PDL::Complex Ranking & Summary

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  • Perl Artistic License
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  • FREE
  • Publisher Name:
  • Marc Lehmann
  • Publisher web site:
  • http://www.goof.com/pcg/marc/

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PDL::Complex Description

PDL::Complex can handle complex numbers. PDL::Complex can handle complex numbers.SYNOPSIS use PDL; use PDL::Complex;This module features a growing number of functions manipulating complex numbers. These are usually represented as a pair or . If not explicitly mentioned, the functions can work inplace (not yet implemented!!!) and require rectangular form.While there is a procedural interface available ($a/$b*$c ), you can also opt to cast your pdl's into the PDL::Complex datatype, which works just like your normal piddles, but with all the normal perl operators overloaded.The latter means that sin($a) + $b/$c will be evaluated using the normal rules of complex numbers, while other pdl functions (like max) just treat the piddle as a real-valued piddle with a lowest dimension of size 2, so max will return the maximum of all real and imaginary parts, not the "highest" (for some definition)TIPS, TRICKS & CAVEATSi is a constant exported by this module, which represents -1**0.5, i.e. the imaginary unit. it can be used to quickly and conviniently write complex constants like this: 4+3*i.Use r2C(real-values) to convert from real to complex, as in $r = Cpow $cplx, r2C 2. The overloaded operators automatically do that for you, all the other functions, do not. So Croots 1, 5 will return all the fifths roots of 1+1*i (due to threading).use cplx(real-valued-piddle) to cast from normal piddles intot he complex datatype. Use real(complex-valued-piddle) to cast back. This requires a copy, though.This module has received some testing by Vanuxem Grgory (g.vanuxem at wanadoo dot fr). Please report any other errors you come across!Requirements:· Perl Requirements: · Perl


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