My calculator's integration seems wrong

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The discussion revolves around a discrepancy in the results of an integral calculation using different methods. The integral in question is x^2 + xy/2, evaluated from 0 to x with respect to y. While Wolfram Alpha provides a specific result, the TI-nspire cx CAS calculator yields a different expression: x*(2x^2 + xy)/2. The difference arises from how the calculator interprets the term "xy." It appears that the calculator treated "xy" as a constant rather than a variable multiplication, leading to an unexpected outcome. Proper input, including the use of multiplication symbols, is crucial for accurate results in such calculations.
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did you enter the right thing into your calculator with brackets in the right place, etc? I don't know how that y got left behind, you know your calculator better than I do.I got the same thing wolfram did.
 
gummz said:
This is the integral: http://www.wolframalpha.com/input/?i=integrate+x^2+xy/2+from+0+to+x+with+respect+to+y

But my calculator (TI-nspire cx CAS) gets this:

x*(2x^2+xy)/2

Any idea why this is?
It looks like the integration done by your calculator used some integration variable other than x or y .

Please state in the body of your post the integral you are trying to evaluate.
 
Did you put a multiplication symbol, "*", in the middle of "xy"?. It seems that your calculator treated "xy" as the name of a single constant. Thus, your calculator integrated the constant "xy" and got y*xy, After evaluating at the limits, this becomes x*xy.
 
That's it! Thank you so much George.
 
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