6 ms·

thanks for the clear explanation. It's strange to me as a newbie in ruby that this can happen and I think that can lead to errors if you don't take that into ac

by ajimix 7y ago

thanks for the clear explanation. It's strange to me as a newbie in ruby that this can happen and I think that can lead to errors if you don't take that into account when doing calculations with numbers... Good to know

ThrowawayR2 7y ago
The distinction between integers and floating point variables is the same in most mainstream languages and is not specific to Ruby.
Dajve_Bloke 7y ago
NB - you get the same result in MS-SQL (and for exactly the same reason). Ruby behaves like SQL in that appending a decimal to the values results in non-integer maths being employed. MS-SQL itself is slightly out (I assume due to floating point inaccuracy) SELECT (289.0 / 30.0 * 30.0) - (149.0 / 30.0 * 30.0) 140.0000100