Method: Float#**

Defined in:
numeric.c

#**(other) ⇒ Float

Raises float to the power of other.

2.0**3   #=> 8.0

Returns:

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# File 'numeric.c', line 1327

VALUE
rb_float_pow(VALUE x, VALUE y)
{
    double dx, dy;
    if (y == INT2FIX(2)) {
	dx = RFLOAT_VALUE(x);
        return DBL2NUM(dx * dx);
    }
    else if (RB_TYPE_P(y, T_FIXNUM)) {
	dx = RFLOAT_VALUE(x);
	dy = (double)FIX2LONG(y);
    }
    else if (RB_TYPE_P(y, T_BIGNUM)) {
	dx = RFLOAT_VALUE(x);
	dy = rb_big2dbl(y);
    }
    else if (RB_TYPE_P(y, T_FLOAT)) {
	dx = RFLOAT_VALUE(x);
	dy = RFLOAT_VALUE(y);
	if (dx < 0 && dy != round(dy))
            return rb_dbl_complex_new_polar_pi(pow(-dx, dy), dy);
    }
    else {
	return rb_num_coerce_bin(x, y, idPow);
    }
    return DBL2NUM(pow(dx, dy));
}