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Create an iterator which iteratively evaluates the natural exponential function.
npm install @stdlib/math-iter-special-exp
var iterExp = require( '@stdlib/math-iter-special-exp' );
Returns an iterator which iteratively evaluates the natural exponential function.
var array2iterator = require( '@stdlib/array-to-iterator' );
var it = iterExp( array2iterator( [ 4.0, -9.0, 0.0 ] ) );
// returns <Object>
var r = it.next().value;
// returns ~54.5982
r = it.next().value;
// returns ~1.234e-4
r = it.next().value;
// returns 1.0
// ...
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
value
property and adone
property having aboolean
value 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 aniterator
which type checks and handles non-numeric values accordingly. - If an environment supports
Symbol.iterator
and a provided iterator is iterable, the returned iterator is iterable.
var uniform = require( '@stdlib/random-iter-uniform' );
var iterExp = require( '@stdlib/math-iter-special-exp' );
// 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 = iterExp( rand );
// Perform manual iteration...
var r;
while ( true ) {
r = it.next();
if ( r.done ) {
break;
}
console.log( r.value );
}
-
@stdlib/math-base/special/exp
: natural exponential function. -
@stdlib/math-iter/special/exp10
: create an iterator which evaluates the base 10 exponential function for each iterated value. -
@stdlib/math-iter/special/exp2
: create an iterator which evaluates the base 2 exponential function for each iterated value. -
@stdlib/math-iter/special/expm1
: create an iterator which computesexp(x) - 1
for each iterated value. -
@stdlib/math-iter/special/ln
: create an iterator which evaluates the natural logarithm for 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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