Math operator iterators.
var ns = require( '@stdlib/math/iter/ops' );Namespace containing math operator iterators.
var iterators = ns;
// returns {...}The namespace contains the following functions for creating iterator protocol-compliant iterators:
iterAdd( iter0, ...iterator ): create an iterator which performs element-wise addition of two or more iterators.iterDivide( iter0, ...iterator ): create an iterator which performs element-wise division of two or more iterators.iterMod( iter0, ...iterator ): create an iterator which performs an element-wise modulo operation of two or more iterators.iterMultiply( iter0, ...iterator ): create an iterator which performs element-wise multiplication of two or more iterators.iterSubtract( iter0, ...iterator ): create an iterator which performs element-wise subtraction of two or more iterators.
var array2iterator = require( '@stdlib/array/to-iterator' );
var ns = require( '@stdlib/math/iter/ops' );
// Demonstrate operations with two iterators:
var arr1 = [ 2.0, 3.0 ];
var arr2 = [ 1.0, 4.0 ];
var itAdd = ns.iterAdd( array2iterator( arr1 ), array2iterator( arr2 ) );
var itDiv = ns.iterDivide( array2iterator( arr1 ), array2iterator( arr2 ) );
var itMul = ns.iterMultiply( array2iterator( arr1 ), array2iterator( arr2 ) );
var itSub = ns.iterSubtract( array2iterator( arr1 ), array2iterator( arr2 ) );
// Addition: 2+1=3, 3+4=7
console.log( itAdd.next().value );
// => 3.0
console.log( itAdd.next().value );
// => 7.0
// Division: 2/1=2, 3/4=0.75
console.log( itDiv.next().value );
// => 2.0
console.log( itDiv.next().value );
// => 0.75
// Multiplication: 2*1=2, 3*4=12
console.log( itMul.next().value );
// => 2.0
console.log( itMul.next().value );
// => 12.0
// Subtraction: 2-1=1, 3-4=-1
console.log( itSub.next().value );
// => 1.0
console.log( itSub.next().value );
// => -1.0
// Demonstrate operation with iterator and constant
var it3 = array2iterator( [ 1.0, 2.0 ] );
var itWithConstant = ns.iterAdd( it3, 3.0 );
console.log( itWithConstant.next().value );
// => 4.0
console.log( itWithConstant.next().value );
// => 5.0