Question about Casio FX-115MS Plus Calculator

# I'm trying to calculate base number equation

For example:

I'm trying to work out 5 * 5 to the power of 3 - don't know how to write that properly with my computer. The problem is that the instructions aren't as clear as i'd hoped and it gives examples of Octal and hexadecimal calcuations, but none of the straight decimal variety

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• Casio Master

Hello,
You are victim of a confusion between terms. Base-n calculations are calculations using various numeration systems (bases) : binary (2), octal(8) hexadecimal (16) and decimal (10). What you want is how to calculate powers, logarithms, exponentials and these have also the notion of base; Log in base 10 is the common log, whereas natural logarithms, are logarithms in base e.
Back to your exemple: 5 times 5 and raise the whole to power 3?
In that case [(] 5 [x] 5 [)] [^] 3 or [X to the 3] if you have such key or
25 [^] 3, because 5x5 = 25

5 times (5 raised to power 3)
5[x] [( ] 5 [^] 3 [)] or 5 [^] 4 because of the rules about products of powers with the same base.

Hope it helps.

Posted on Sep 18, 2009

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Posted on Jan 02, 2017

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