Hi,

of course, 1.41421356237 is also not the correct value, since sqrt(2) is an irrational number, and as such, you can't represent it as a finite decimal number. In a digital environment, you have to round it at some point to some value. 1.41421356237 is a good approximation in the decimal system.

Floating-point numbers in Max are 4-byte 'single-precision floating point' numbers, using the binary system. 1.414213538170 is the decimal representation of the binary number that is the best approximation of sqrt(2) using the number of binary digits allowed by the single-precision representation.

Hope this helps,

Ádám