Hello all, I really appreciate "WolframAlpha", but I don't understand how "WolframAlpha" calculates the next amount:
Thank you very much!All the best!
Hello all, What do you think about the values given by "Wolfram Alpha" in the cases:
1) sum_{k=n}^1 k = -9 for n=5 ? 2) sum_{k=5}^1 k =0 ?
Thank you very much!
Iulian
I would guess W|A is doing summation like Riemann integration. So sum from upper to lower = -sum from lower to upper.
Isn't W|A input the same as cntl+= in the desktop version? That's what I've done above.
