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- <?php
- /**
- *
- * Function code for the complex sinh() function
- *
- * @copyright Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
- * @license https://opensource.org/licenses/MIT MIT
- */
- namespace Complex;
- /**
- * Returns the hyperbolic sine of a complex number.
- *
- * @param Complex|mixed $complex Complex number or a numeric value.
- * @return Complex The hyperbolic sine of the complex argument.
- * @throws Exception If argument isn't a valid real or complex number.
- */
- function sinh($complex)
- {
- $complex = Complex::validateComplexArgument($complex);
- if ($complex->isReal()) {
- return new Complex(\sinh($complex->getReal()));
- }
- return new Complex(
- \sinh($complex->getReal()) * \cos($complex->getImaginary()),
- \cosh($complex->getReal()) * \sin($complex->getImaginary()),
- $complex->getSuffix()
- );
- }
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