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 );