method

atanh

v1_8_6_287 - Show latest stable - 0 notes - Class: Math

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atanh(p1) public

Computes the inverse hyperbolic tangent of x.

/*
 *  call-seq:
 *     Math.atanh(x)    => float
 *  
 *  Computes the inverse hyperbolic tangent of <i>x</i>.
 */

static VALUE
math_atanh(obj, x)
    VALUE obj, x;
{
    double d;

    Need_Float(x);
    errno = 0;
    d = atanh(RFLOAT(x)->value);
    domain_check(d, "atanh");
    return rb_float_new(d);
}

atanh

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