03 Jan 07
Originally posted by FischerRandomOh really? Because that's what maple gives me for the differential of arcsin(x+1/x) wrt x.
second and third are right but not the first.keep trying.
Perhaps you meant arcsin((x+1)/x) or sin (x+1/x)^-1 or something else entirely.
Keep trying.
PS. These questions are stupid.
03 Jan 07
Originally posted by XanthosNZUsing maple? Well, then it is not hard... 🙄
Oh really? Because that's what maple gives me for the differential of arcsin(x+1/x) wrt x.
Perhaps you meant arcsin((x+1)/x) or sin (x+1/x)^-1 or something else entirely.
Keep trying.
PS. These questions are stupid.
Using Fritz too? 😉
03 Jan 07
Originally posted by FabianFnasIf you don't want to use maple (or similar) you basically go to a big table of differentials and look it up.
Using maple? Well, then it is not hard... 🙄
Using Fritz too? 😉
It's the same in the end and one is faster than the other.
I'll assume that the last comment is a joke.
03 Jan 07
Originally posted by XanthosNZno i mean only sin inverse and nothing else.
Oh really? Because that's what maple gives me for the differential of arcsin(x+1/x) wrt x.
Perhaps you meant arcsin((x+1)/x) or sin (x+1/x)^-1 or something else entirely.
Keep trying.
PS. These questions are stupid.
03 Jan 07
Originally posted by XanthosNZOf course it was a joke, hence the blinking MrSmilie.
If you don't want to use maple (or similar) you basically go to a big table of differentials and look it up.
It's the same in the end and one is faster than the other.
I'll assume that the last comment is a joke.
But still, solving a mathematical puzzle using Maple doesn't give any credits, as solving a mate-in-two using Fritz...
I don't think the threadmaker, the puzzlemaker, ment that the puzzle would be solved with silicon intelligence but with the more sofisticated computer, called brain.
Now, before you get angry I put another MrSmiley to smooth any hard feelings: 😵
03 Jan 07
Originally posted by FabianFnasHow about solving a mate in 100+ moves with 2 Knights versus a Pawn? There are some of those in the Nalimov tablebase. What human would want to bother solving such a tedious and lengthy endgame?
Of course it was a joke, hence the blinking MrSmilie.
But still, solving a mathematical puzzle using Maple doesn't give any credits, as solving a mate-in-two using Fritz...
I don't think the threadmaker, the puzzlemaker, ment that the puzzle would be solved with silicon intelligence but with the more sofisticated computer, called brain.
Now, before you get angry I put another MrSmiley to smooth any hard feelings: 😵
Puzzlemakers do not always intend for their puzzle to be solved by humans. See question 2 of the puzzle in Thread 56774.
03 Jan 07
Originally posted by BigDoggProblemTrue, but how hard can it be to press a button on a keyboard? If I solved a mate-in-99 with Fritz, does people say "Oh, how clever you are"? I don't think so.
How about solving a mate in 100+ moves with 2 Knights versus a Pawn? There are some of those in the Nalimov tablebase. What human would want to bother solving such a tedious and lengthy endgame?
Puzzlemakers do not always intend for their puzzle to be solved by humans. See question 2 of the puzzle in Thread 56774.
I know Xantoz is intelligent (no Smiley here) but even my nephew, 9 years old can press a button. Does this mean that he is clever as Xantoz? I don't think so.
03 Jan 07
4 edits
Originally posted by FischerRandomIf y = sin(x) then x = arcsin(y) or x = sin^-1(y)
no i mean only sin inverse and nothing else.
saying sin inverse (y) isn't very clear as it can be confused with
x = 1 / sin(y) or x = sin(y)^1
EDIT:
1. The derivative of f(x) = arcsin x is given by
f '(x) = 1 / sqrt(1 - x^2)
Therefore the answer is
1 / sqrt(1 - ((x^2 + x + 1) / x^2)
Assuming you meant that sin inverse is arcsin.
EDIT2: Which appears to be the same as Xanthos's answer, without doing any checking.
Other edits were grammatical. 😛