10 lines
		
	
	
		
			187 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			10 lines
		
	
	
		
			187 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
// 20.2.2.12 Math.cosh(x)
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var $export = require('./_export');
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var exp = Math.exp;
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$export($export.S, 'Math', {
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  cosh: function cosh(x) {
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    return (exp(x = +x) + exp(-x)) / 2;
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  }
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});
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