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Create an iterator which computes
sqrt(1+x) - 1for each iterated value.
npm install @stdlib/math-iter-special-sqrt1pm1Alternatively,
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scripttag without installation and bundlers, use the ES Module available on theesmbranch (see README). - If you are using Deno, visit the
denobranch (see README for usage intructions). - For use in Observable, or in browser/node environments, use the Universal Module Definition (UMD) build available on the
umdbranch (see README).
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var iterSqrt1pm1 = require( '@stdlib/math-iter-special-sqrt1pm1' );Returns an iterator which iteratively computes sqrt(1+x) - 1 more accurately for small x.
var array2iterator = require( '@stdlib/array-to-iterator' );
var it = iterSqrt1pm1( array2iterator( [ 3.0, 0.5 ] ) );
// returns <Object>
var v = it.next().value;
// returns 1.0
v = it.next().value;
// returns ~0.225
// ...The returned iterator protocol-compliant object has the following properties:
- next: function which returns an iterator protocol-compliant object containing the next iterated value (if one exists) assigned to a
valueproperty and adoneproperty having abooleanvalue indicating whether the iterator is finished. - return: function which closes an iterator and returns a single (optional) argument in an iterator protocol-compliant object.
- If an iterated value is non-numeric (including
NaN), the returned iterator returnsNaN. If non-numeric iterated values are possible, you are advised to provide aniteratorwhich type checks and handles non-numeric values accordingly. - If an environment supports
Symbol.iteratorand a provided iterator is iterable, the returned iterator is iterable.
var uniform = require( '@stdlib/random-iter-uniform' );
var iterSqrt1pm1 = require( '@stdlib/math-iter-special-sqrt1pm1' );
// Create a seeded iterator for generating pseudorandom numbers:
var rand = uniform( 0.0, 100.0, {
'seed': 1234,
'iter': 10
});
// Create an iterator which consumes the pseudorandom number iterator:
var it = iterSqrt1pm1( rand );
// Perform manual iteration...
var v;
while ( true ) {
v = it.next();
if ( v.done ) {
break;
}
console.log( v.value );
}@stdlib/math-base/special/sqrt1pm1: compute sqrt(1 + x) - 1.@stdlib/math-iter/special/sqrt: create an iterator which computes the principal square root of each iterated value.
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
See LICENSE.
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