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Recent content by fbeltrao
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Very simple matrix, very wrong answer
That's exaclty what I made, used the symbolic engine, makes eveything much easier without the need to implement undesirable workarounds. Now evething works as expected.- fbeltrao
- Post #6
- Forum: PTC: Mathcad
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Very simple matrix, very wrong answer
@GregLocock I'm a student, take it easy, I'm not a MathCAD expert or know how it makes arithmetic calculations internally, I understand that computers solve this kind of calculation in a different way we make by hand. I'm not solving matrices alone in MathCAD, that matrix I used as an...- fbeltrao
- Post #4
- Forum: PTC: Mathcad
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Very simple matrix, very wrong answer
Try to find the determinant of the following 3x3 matrix: | 2 3 4 | M := | 1 -2 3 | | 3 1 7 | MathCAD 15 returns me this: |M| = 6.217*10^-15 Which is obviously wrong. The answer is ZERO. Doing it manually: [2*(-2)*7 + 3*3*3 + 1*1*4] - [4*(-2)*3 + 3*1*7 + 3*1*2] 3 - 3 0 Also...- fbeltrao
- Thread
- Replies: 19
- Forum: PTC: Mathcad
