linspace

Generate a linearly spaced numeric array.

Usage

var linspace = require( '@stdlib/array/base/linspace' );

linspace( start, stop, length )

Generates a linearly spaced numeric array.

var arr = linspace( 0, 100, 6 );
// returns [ 0, 20, 40, 60, 80, 100 ]

Notes

The function assumes that length is greater than or equal to 2.

The output array is guaranteed to include the start and stop values. Beware, however, that values between start and stop are subject to floating-point rounding errors. Hence,

var arr = linspace( 0, 1, 3 );
// returns [ 0, ~0.5, 1 ]

where arr[1] is only guaranteed to be approximately equal to 0.5. If you desire more control over element precision, consider using roundn:

var roundn = require( '@stdlib/math/base/special/roundn' );

// Create an array subject to floating-point rounding errors:
var arr = linspace( 0, 1, 21 );

// Round each value to the nearest hundredth:
var i;
for ( i = 0; i < arr.length; i++ ) {
    arr[ i ] = roundn( arr[ i ], -2 );
}
console.log( arr.join( '\n' ) );

Examples

var linspace = require( '@stdlib/array/base/linspace' );

// Create arrays of varying lengths:
var out = linspace( 0, 10, 10 );
console.log( out );

out = linspace( 0, 10, 11 );
console.log( out );

out = linspace( 0, 10, 21 );
console.log( out );

// Create an array with decremented values:
out = linspace( 10, 0, 11 );
console.log( out );