method

ldexp

v1_9_3_125 - Show latest stable - Class: Math

ldexp(p1, p2)

public

Returns the value of flt*(2**int).

fraction, exponent = Math.frexp(1234)
Math.ldexp(fraction, exponent)   #=> 1234.0

static VALUE
math_ldexp(VALUE obj, VALUE x, VALUE n)
{
    Need_Float(x);
    return DBL2NUM(ldexp(RFLOAT_VALUE(x), NUM2INT(n)));
}