+ Press n or j to go to the next uncovered block, b, p or k for the previous block. +
+ +| File | ++ | Statements | ++ | Branches | ++ | Functions | ++ | Lines | ++ |
|---|---|---|---|---|---|---|---|---|---|
| index.js | +
+
+ |
+ 100% | +46/46 | +100% | +1/1 | +100% | +0/0 | +100% | +46/46 | +
| main.js | +
+
+ |
+ 100% | +68/68 | +100% | +9/9 | +100% | +1/1 | +100% | +68/68 | +
| native.js | +
+
+ |
+ 100% | +59/59 | +100% | +2/2 | +100% | +1/1 | +100% | +59/59 | +
+ 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 | 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 +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x + | /** +* @license Apache-2.0 +* +* Copyright (c) 2018 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. +*/ + +'use strict'; + +/** +* Compute the natural logarithm of \\( exp(x) + exp(y) \\). +* +* @module @stdlib/math/base/special/logaddexp +* +* @example +* var logaddexp = require( '@stdlib/math/base/special/logaddexp' ); +* +* var v = logaddexp( 90.0, 90.0 ); +* // returns ~90.6931 +* +* v = logaddexp( -20.0, 90.0 ); +* // returns 90.0 +* +* v = logaddexp( 0.0, -100 ); +* // returns ~3.7201e-44 +*/ + +// MODULES // + +var main = require( './main.js' ); + + +// EXPORTS // + +module.exports = main; + |
+ 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 +65 +66 +67 +68 +69 | 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 +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1405x +1405x +1405x +3x +3x +1405x +1x +1x +1401x +1405x +695x +695x +706x +1405x +1x +1x +1x +1x +1x + | /**
+* @license Apache-2.0
+*
+* Copyright (c) 2018 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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var isnan = require( '@stdlib/math/base/assert/is-nan' );
+var exp = require( '@stdlib/math/base/special/exp' );
+var log1p = require( '@stdlib/math/base/special/log1p' );
+var LN2 = require( '@stdlib/constants/float64/ln-two' );
+
+
+// MAIN //
+
+/**
+* Computes the natural logarithm of \\( \exp(x) + \exp(y) \\).
+*
+* @param {number} x - input value
+* @param {number} y - input value
+* @returns {number} natural logarithm of \\( \exp(x) + \exp(y) \\)
+*
+* @example
+* var v = logaddexp( 90.0, 90.0 );
+* // returns ~90.6931
+*
+* @example
+* var v = logaddexp( -20.0, 90.0 );
+* // returns 90.0
+*
+* @example
+* var v = logaddexp( 0.0, -100 );
+* // returns ~3.7201e-44
+*/
+function logaddexp( x, y ) {
+ var d;
+ if ( isnan( x ) || isnan( y ) ) {
+ return NaN;
+ }
+ if ( x === y ) {
+ return x + LN2;
+ }
+ d = x - y;
+ if ( d > 0.0 ) {
+ return x + log1p( exp( -d ) );
+ }
+ return y + log1p( exp( d ) );
+}
+
+
+// EXPORTS //
+
+module.exports = logaddexp;
+ |
+ 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 | 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 +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1x +1405x +1405x +1405x +1x +1x +1x +1x +1x + | /**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var addon = require( './../src/addon.node' );
+
+
+// MAIN //
+
+/**
+* Computes the natural logarithm of `exp(x) + exp(y)`.
+*
+* @private
+* @param {number} x - first number
+* @param {number} y - second number
+* @returns {number} natural logarithm of \\( \exp(x) + \exp(y) \\)
+*
+* @example
+* var v = logaddexp( 90.0, 90.0 );
+* // returns ~90.6931
+*
+* @example
+* var v = logaddexp( -20.0, 90.0 );
+* // returns 90.0
+*
+* @example
+* var v = logaddexp( NaN, 1.0 );
+* // returns NaN
+*
+* @example
+* var v = logaddexp( 0.0, -100.0 );
+* // returns ~3.7201e-44
+*/
+function logaddexp( x, y ) {
+ return addon( x, y );
+}
+
+
+// EXPORTS //
+
+module.exports = logaddexp;
+ |