# Linspace

Generate a linearly spaced numeric array.

## Usage

``````var linspace = require( '@stdlib/math/utils/linspace' );
``````

#### linspace( start, stop[, length] )

Generates a linearly spaced numeric `array`. If a `length` is not provided, the default output `array` length is `100`.

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

## Notes

• The output `array` is guaranteed to include the `start` and `stop` values. Beware, however, that values between the `start` and `stop` are subject to floating-point 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 errors:
var arr = linspace( 0, 1, 21 );

// Round each value to the nearest hundredth:
var out = new Array( arr.length );
var i;
for ( i = 0; i < arr.length; i++ ) {
out[ i ] = roundn( arr[ i ], -2 );
}

console.log( out.join( '\n' ) );
``````

## Examples

``````var linspace = require( '@stdlib/math/utils/linspace' );
var out;

// Default behavior:
out = linspace( 0, 10 );
console.log( out.join( '\n' ) );

// Specify length:
out = linspace( 0, 10, 10 );
console.log( out.join( '\n' ) );

out = linspace( 0, 10, 11 );
console.log( out.join( '\n' ) );

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