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<!-- | ||
@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. | ||
--> | ||
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# FLOAT32_LN2 | ||
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> [Natural logarithm][@stdlib/math/base/special/lnf] of `2` as a single-precision floating-point number. | ||
<section class="usage"> | ||
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## Usage | ||
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```javascript | ||
var FLOAT32_LN2 = require( '@stdlib/constants/float32/ln-two' ); | ||
``` | ||
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#### FLOAT32_LN2 | ||
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[Natural logarithm][@stdlib/math/base/special/lnf] of `2` as a single-precision floating-point number. | ||
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```javascript | ||
var bool = ( FLOAT32_LN2 === 0.6931471824645996 ); | ||
// returns true | ||
``` | ||
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</section> | ||
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<!-- /.usage --> | ||
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<section class="examples"> | ||
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## Examples | ||
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<!-- eslint no-undef: "error" --> | ||
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```javascript | ||
var FLOAT32_LN2 = require( '@stdlib/constants/float32/ln-two' ); | ||
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console.log( FLOAT32_LN2 ); | ||
// => 0.6931471824645996 | ||
``` | ||
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</section> | ||
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<!-- /.examples --> | ||
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<!-- C interface documentation. --> | ||
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* * * | ||
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<section class="c"> | ||
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## C APIs | ||
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<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. --> | ||
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<section class="intro"> | ||
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</section> | ||
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<!-- /.intro --> | ||
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<!-- C usage documentation. --> | ||
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<section class="usage"> | ||
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### Usage | ||
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```c | ||
#include "stdlib/constants/float32/ln_two.h" | ||
``` | ||
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#### STDLIB_CONSTANT_FLOAT32_LN2 | ||
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Macro for the [natural logarithm][@stdlib/math/base/special/lnf] of `2` as a single-precision floating-point number. | ||
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</section> | ||
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<!-- /.usage --> | ||
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<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> | ||
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<section class="notes"> | ||
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</section> | ||
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<!-- /.notes --> | ||
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<!-- C API usage examples. --> | ||
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<section class="examples"> | ||
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</section> | ||
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<!-- /.examples --> | ||
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</section> | ||
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<!-- /.c --> | ||
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<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. --> | ||
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<section class="related"> | ||
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</section> | ||
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<!-- /.related --> | ||
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<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> | ||
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<section class="links"> | ||
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[@stdlib/math/base/special/lnf]: https://github.com/stdlib-js/math-base-special-lnf | ||
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<!-- <related-links> --> | ||
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<!-- </related-links> --> | ||
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</section> | ||
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<!-- /.links --> |
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{{alias}} | ||
Natural logarithm of `2` as a single-precision floating-point number. | ||
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Examples | ||
-------- | ||
> {{alias}} | ||
0.6931471824645996 | ||
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See Also | ||
-------- | ||
|
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/* | ||
* @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. | ||
*/ | ||
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// TypeScript Version: 4.1 | ||
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/** | ||
* Natural logarithm of `2` as a single-precision floating-point number. | ||
* | ||
* @example | ||
* var val = FLOAT32_LN2; | ||
* // returns 0.6931471824645996 | ||
*/ | ||
declare const FLOAT32_LN2: number; | ||
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// EXPORTS // | ||
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export = FLOAT32_LN2; |
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/* | ||
* @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. | ||
*/ | ||
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import FLOAT32_LN2 = require( './index' ); | ||
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// TESTS // | ||
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// The export is a number... | ||
{ | ||
// eslint-disable-next-line @typescript-eslint/no-unused-expressions | ||
FLOAT32_LN2; // $ExpectType number | ||
} |
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/** | ||
* @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. | ||
*/ | ||
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'use strict'; | ||
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var FLOAT32_LN2 = require( './../lib' ); | ||
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console.log( FLOAT32_LN2 ); | ||
// => 0.6931471824645996 |
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/** | ||
* @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. | ||
*/ | ||
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#ifndef STDLIB_CONSTANTS_FLOAT32_LN2_H | ||
#define STDLIB_CONSTANTS_FLOAT32_LN2_H | ||
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/** | ||
* Macro for the natural logarithm of `2` as a single-precision floating-point number. | ||
*/ | ||
#define STDLIB_CONSTANT_FLOAT32_LN2 0.6931471824645996 | ||
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#endif // !STDLIB_CONSTANTS_FLOAT32_LN2_H |
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