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Modern Math Cosh
Paul Squires edited this page Oct 19, 2026
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Home › Math Library › Math Library › Cosh
Returns the hyperbolic cosine of a number.
Cosh( x )- Never less than 1.
Acoshis its inverse for x of 1 and above. - Overloaded on
float64and onfloat32: a single-precision argument takes the single-precision path and does not widen. - BOUNDED accuracy: correct to the platform library's stated ulp bound.
#import "std/numeric"
using numeric
print Cosh( 0.0 ) '' 1
print Cosh( 1.0 ) '' 1.543080634815244Library: Math Library
Category: Math Library
Documented under: The libm surface
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