3 ms·
Because the derivative at 0 of abs is undefined.
by smabie 7y ago
Because the derivative at 0 of abs is undefined.
- chrisseaton 7y agoWhy do I care about that though?
- smabie 7y agoTaylor series, calculating maxima/minima, etc. also standard deviations compose in a very nice way. All throughout math, we use squared terms instead of absolute value all the time because it’s convenient.