method

`

Ruby on Rails latest stable (v3.2.13) - 0 notes - Class: Object

-@() public

Returns float, negated.

static VALUE
flo_uminus(VALUE flt)
{
    return DBL2NUM(-RFLOAT_VALUE(flt));
}

May 19, 2010

0 thanks

If you’re trying to calculate 2 to the power of 2, the ^ method is not what you want. Try ** instead.

2^2  #=> 0
2^8  #=> 10
2**2 #=> 4
2**8 #=> 256