method

cosh

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cosh(p1) public

Computes the hyperbolic cosine of x (expressed in radians).

/*
 *  call-seq:
 *     Math.cosh(x)    => float
 *  
 *  Computes the hyperbolic cosine of <i>x</i> (expressed in radians).
 */

static VALUE
math_cosh(obj, x)
    VALUE obj, x;
{
    Need_Float(x);
    
    return rb_float_new(cosh(RFLOAT(x)->value));
}

cosh

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