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Integration results puzzle
02-18-2019, 03:04 PM
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Integration results puzzle
I have been working with some RC decay problems, so have been using my Prime.

(Sorry, I don't know how to enter equations.)

I used the CAS to integrate e^-x from 0 to 5.

I get an answer something like exp(-1/5 + 1)

I copy this to the command line, hit home and enter and get the result .99326... which is what I expect.

When I use the e^x button and enter the exponent: +/-, 1,/,5,+,1 and hit enter I get 2.2255

when I calculate e^x with an exponent of 4/5, I get a result of 2.2255

What is the difference?
The only difference I see, and it is real subtle, is that for the correct case the 5 is centered under the divide bar and for the incorrect case the 5 is right justified.
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Messages In This Thread
Integration results puzzle - KeithB - 02-18-2019 03:04 PM
RE: Integration results puzzle - DA74254 - 02-18-2019, 03:17 PM
RE: Integration results puzzle - KeithB - 02-18-2019, 03:20 PM
RE: Integration results puzzle - DA74254 - 02-18-2019, 03:24 PM
RE: Integration results puzzle - DrD - 02-18-2019, 03:37 PM
RE: Integration results puzzle - KeithB - 02-18-2019, 05:11 PM
RE: Integration results puzzle - mfleming - 02-18-2019, 03:44 PM
RE: Integration results puzzle - KeithB - 02-19-2019, 03:19 PM
RE: Integration results puzzle - DrD - 02-19-2019, 03:48 PM
RE: Integration results puzzle - mfleming - 02-19-2019, 04:04 PM



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