Package Exports
- @stdlib/math-base-special-erfcinv
- @stdlib/math-base-special-erfcinv/dist
- @stdlib/math-base-special-erfcinv/dist/index.js
- @stdlib/math-base-special-erfcinv/lib/index.js
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@stdlib/math-base-special-erfcinv) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
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erfcinv
The inverse complementary error function is defined as
where erf^{-1}(z) is the inverse error function.
Installation
npm install @stdlib/math-base-special-erfcinvUsage
var erfcinv = require( '@stdlib/math-base-special-erfcinv' );erfcinv( x )
Evaluates the inverse complementary error function.
var y = erfcinv( 0.5 );
// returns ~0.4769
y = erfcinv( 0.8 );
// returns ~0.1791
y = erfcinv( 0.0 );
// returns Infinity
y = erfcinv( 2.0 );
// returns -InfinityThe domain of x is restricted to [0,2]. If x is outside this interval, the function returns NaN.
var y = erfcinv( -3.14 );
// returns NaNIf provided NaN, the function returns NaN.
var y = erfcinv( NaN );
// returns NaNExamples
var uniform = require( '@stdlib/random-array-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var erfcinv = require( '@stdlib/math-base-special-erfcinv' );
var opts = {
'dtype': 'float64'
};
var x = uniform( 100, 0.0, 2.0, opts );
logEachMap( 'x: %0.4f, erfcinv(x): %0.4f', x, erfcinv );C APIs
Usage
#include "stdlib/math/base/special/erfcinv.h"stdlib_base_erfcinv( x )
Evaluates the inverse complementary error function.
double out = stdlib_base_erfcinv( 0.5 );
// returns ~0.4769
out = stdlib_base_erfcinv( 0.8 );
// returns ~0.1791The function accepts the following arguments:
- x:
[in] doubleinput value.
double stdlib_base_erfcinv( const double x );Examples
#include "stdlib/math/base/special/erfcinv.h"
#include <stdio.h>
int main( void ) {
const double x[] = { 0.0, 0.22, 0.44, 0.67, 0.89, 1.11, 1.33, 1.56, 1.78, 2.0 };
double v;
int i;
for ( i = 0; i < 10; i++ ) {
v = stdlib_base_erfcinv( x[ i ] );
printf( "x: %lf, erfcinv(x): %lf\n", x[ i ], v );
}
}Notice
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
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