All files rational_ak6bk6.js

96.87% Statements 62/64
85.71% Branches 6/7
100% Functions 1/1
96.87% Lines 62/64

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 651x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 716x 716x 716x 716x 716x     716x 6x 716x 710x 710x 716x 619x 619x 716x 97x 97x 97x 97x 716x 716x 1x 1x 1x 1x 1x  
/**
* @license Apache-2.0
*
* Copyright (c) 2022 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
 
/* This is a generated file. Do not edit directly. */
'use strict';
 
// MAIN //
 
/**
* Evaluates a rational function, i.e., the ratio of two polynomials described by the coefficients stored in \\(P\\) and \\(Q\\).
*
* ## Notes
*
* -   Coefficients should be sorted in ascending degree.
* -   The implementation uses [Horner's rule][horners-method] for efficient computation.
*
* [horners-method]: https://en.wikipedia.org/wiki/Horner%27s_method
*
* @private
* @param {number} x - value at which to evaluate the rational function
* @returns {number} evaluated rational function
*/
function evalrational( x ) {
	var ax;
	var s1;
	var s2;
	if ( x === 0.0 ) {
		return 0.00439937562904;
	}
	if ( x < 0.0 ) {
		ax = -x;
	} else {
		ax = x;
	}
	if ( ax <= 1.0 ) {
		s1 = 0.00439937562904 + (x * (0.000487225670639 + (x * (-0.000128470657374 + (x * (0.00000529110969589 + (x * 1.5716677175e-7))))))); // eslint-disable-line max-len
		s2 = 1.0 + (x * (0.794435257415 + (x * (0.333094721709 + (x * (0.0703527806143 + (x * 0.00806110846078))))))); // eslint-disable-line max-len
	} else {
		x = 1.0 / x;
		s1 = 1.5716677175e-7 + (x * (0.00000529110969589 + (x * (-0.000128470657374 + (x * (0.000487225670639 + (x * 0.00439937562904))))))); // eslint-disable-line max-len
		s2 = 0.00806110846078 + (x * (0.0703527806143 + (x * (0.333094721709 + (x * (0.794435257415 + (x * 1.0))))))); // eslint-disable-line max-len
	}
	return s1 / s2;
}
 
 
// EXPORTS //
 
module.exports = evalrational;