complex numbers via GNU Scientific Library
npm install gsl-complexgsl-complex-js
==============
complex numbers for JS via GNU Scientific Library. The original C code was transpiled to JS via emscripten.
Via npm:
``
npm install gsl-complex
To use it inside node:
`
var complex = require("gsl-complex");
See https://www.gnu.org/software/gsl/manual/html_node/Complex-Numbers.html for a description of the following functions. The prefix gsl_complex_ was removed from the original function definitions. For example, while in C you would call gsl_complex_abs() to retrieve the magnitude of the complex number, the function is exported simply as abs().
Example:
`
var x = complex.rect(3,2);
complex.abs(x);
Output:
`
3.605551275463989
| Function | Parameters | Description |
| ------------- | ----- | ----------- |
| rect | (real, imag) | creates a complex number, real+i*imag |
| polar | (r, theta) | creates a complex number in polar form, r e^(i theta) |
Two following getter and setter functions have been defined for the complex number object:
| Function | Parameters | Description |
| ------------- | ----- | ----------- |
| get_real | | retrieves the real part |
| get_imag | | retrieves the imaginary part |
| set_real | x | sets the real part equal to x |
| set_imag | y | sets the imaginary part equal to y |
| Function |
| ------------- |
| arg |
| abs |
| abs2 |
| logabs |
| Function |
| ------------- |
| add |
| sub |
| mul |
| div |
| add_real |
| sub_real |
| mul_real |
| div_real |
| add_imag |
| sub_imag |
| mul_imag |
| div_imag |
| conjugate |
| inverse |
| negative |
| Function |
| ------------- |
| sqrt |
| sqrt_real |
| pow |
| pow_real |
| exp |
| log |
| log10 |
| log_b |
| conjugate |
| inverse |
| negative |
| Function |
| ------------- |
| sin |
| cos |
| sec |
| csc |
| tan |
| cot |
| Function |
| ------------- |
| arcsin |
| arcsin_real |
| arccos |
| arccos_real |
| arcsec |
| arcsec_real |
| arccsc |
| arccsc_real |
| arctan |
| arccot |
| Function |
| ------------- |
| sinh |
| cosh |
| sech |
| csch |
| tanh |
| coth |
| arcsinh |
| arccosh |
| arccosh_real |
| arcsech |
| arccsch |
| arctanh |
| arctanh_real |
| arccoth |