stdlib-js
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About stdlib...
</summary>
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erfcinv
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[Inverse complementary error function][erfcinv].
erf^{-1}(z) is the [inverse error function][@stdlib/math/base/special/erfinv].
bash
npm install @stdlib/math-base-special-erfcinv
javascript
var erfcinv = require( '@stdlib/math-base-special-erfcinv' );
#### erfcinv( x )
Evaluates the [inverse complementary error function][erfcinv].
javascript
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 -Infinity
The domain of x is restricted to [0,2]. If x is outside this interval, the function returns NaN.
javascript
var y = erfcinv( -3.14 );
// returns NaN
If provided NaN, the function returns NaN.
javascript
var y = erfcinv( NaN );
// returns NaN
javascript
var linspace = require( '@stdlib/array-base-linspace' );
var erfcinv = require( '@stdlib/math-base-special-erfcinv' );
var x = linspace( 0.0, 2.0, 100 );
var i;
for ( i = 0; i < x.length; i++ ) {
console.log( 'x: %d, erfcinv(x): %d', x[ i ], erfcinv( x[ i ] ) );
}
c
#include "stdlib/math/base/special/erfcinv.h"
#### stdlib_base_erfcinv( x )
Evaluates the [inverse complementary error function][erfcinv].
c
double out = stdlib_base_erfcinv( 0.5 );
// returns ~0.4769
out = stdlib_base_erfcinv( 0.8 );
// returns ~0.1791
The function accepts the following arguments:
- x: [in] double input value.
c
double stdlib_base_erfcinv( const double x );
c
#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 );
}
}
@stdlib/math-base/special/erf][@stdlib/math/base/special/erf]: error function.
- [@stdlib/math-base/special/erfc][@stdlib/math/base/special/erfc]: complementary error function.
- [@stdlib/math-base/special/erfinv][@stdlib/math/base/special/erfinv]: inverse error function.
- [@stdlib/math-base/special/erfcx][@stdlib/math/base/special/erfcx]: scaled complementary error function.
