stdlib-js
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About stdlib...
</summary>
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isOdd
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Test if a finite double-precision floating-point number is an odd number.
bash
npm install @stdlib/math-base-assert-is-odd
javascript
var isOdd = require( '@stdlib/math-base-assert-is-odd' );
#### isOdd( x )
Tests if a finite double-precision floating-point number is an odd number.
javascript
var bool = isOdd( 5.0 );
// returns true
bool = isOdd( -2.0 );
// returns false
bool = isOdd( 0.0 );
// returns false
bool = isOdd( NaN );
// returns false
number. If provided positive or negative infinity, the function will return true, when, in fact, the result is undefined. If x can be infinite, wrap the implementation as follows:
javascript
function check( x ) {
return (
x < Infinity &&
x > -Infinity &&
isOdd( x )
);
}
var bool = check( Infinity );
// returns false
bool = check( -Infinity );
// returns false
javascript
var randu = require( '@stdlib/random-base-randu' );
var round = require( '@stdlib/math-base-special-round' );
var isOdd = require( '@stdlib/math-base-assert-is-odd' );
var bool;
var x;
var i;
for ( i = 0; i < 100; i++ ) {
x = round( randu()*100.0 );
bool = isOdd( x );
console.log( '%d is %s', x, ( bool ) ? 'odd' : 'not odd' );
}
c
#include "stdlib/math/base/assert/is_odd.h"
#### stdlib_base_is_odd( x )
Tests if a finite double-precision floating-point number is an odd number.
c
#include <stdbool.h>
bool out = stdlib_base_is_odd( 1.0 );
// returns true
out = stdlib_base_is_odd( 4.0 );
// returns false
The function accepts the following arguments:
- x: [in] double input value.
c
bool stdlib_base_is_odd( const double x );
c
#include "stdlib/math/base/assert/is_odd.h"
#include <stdio.h>
#include <stdbool.h>
int main( void ) {
const double x[] = { 5.0, -5.0, 3.14, -3.14, 0.0, 0.0/0.0 };
bool b;
int i;
for ( i = 0; i < 6; i++ ) {
b = stdlib_base_is_odd( x[ i ] );
printf( "Value: %lf. Is Odd? %s.\n", x[ i ], ( b ) ? "True" : "False" );
}
}
@stdlib/math-base/assert/is-even][@stdlib/math/base/assert/is-even]: test if a finite numeric value is an even number.
