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41CL Quiz: Determinant of 30x30 anti-Identity matrix
05-18-2018, 06:48 PM (This post was last modified: 05-18-2018 06:50 PM by hibiki.)
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RE: 41CL Quiz: Determinant of 30x30 anti-Identity matrix
I see that the solution is 29 or -29 depending on whether the diagonal of 0's is descending from left to right or ascending. But my curiosity is why a simple sum or subtraction of a string of 1's (integers) multiplied 29 times and accumulated 29 times resulted in a non integer number in some responses.

My calcs: HP12C, HP15C, HP17BII+, HP20S, HP20B, HP32SII, HP34C, HP35S, HP42S, HP48GX.
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RE: 41CL Quiz: Determinant of 30x30 anti-Identity matrix - hibiki - 05-18-2018 06:48 PM



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