Posted by x^y key on Saturday, November 5, 2011 at 8:14pm.
I compute (109/3)^1/4 and store that value in A.
Store 3 in P.
Now compute f(7)= Pa^7 by typing:
P x A x^y 7
***My problem is that I don't know WHERE the x^y key is on a TI -83 Plus.
Then I have to subtract this answer from the answer using a rounded value of a (which I found to be 1831.)The difference will show the error used by rounding a and will not be zero.
- math - functions - MathMate, Saturday, November 5, 2011 at 8:47pm
It's just above the ÷ button.
- math - functions - check please, Saturday, November 5, 2011 at 9:15pm
So I punched it in and the calculator reads:
P * A ^ 7
Did I do it correctly?
- math - functions - MathMate, Saturday, November 5, 2011 at 9:38pm
Yes, I got the same answer.
The best way to check is to use numbers that you know, such as:
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