complex-division

Floating point complex division

Intro

Complex floating point division isn't quite trivial. The naive method may encounter overflow, underflow, or loss of precision due to the intermediate floating point results. A simple remedy[1] is:

Usage

require('complex-division')( a, b, c, d [, result] )

Calculates (a + ib)/(c + id) and returns a two-element JS array with the real and imaginary components.

result is an optional Array or typed array into which the output is inserted.

Example

var cdiv = require('complex-division');
 
var result = cdiv( 1, 2, 3, 4 );
 
// result = [ 0.44, 0.08 ]

References

[1] Press, William H. Numerical Recipes 3rd Edition: The Art of Scientific Computing. Cambridge University Press, 2007.

Credits

(c) 2015 Ricky Reusser. MIT License