network profile
| bio | website | |
|---|---|---|
| location | ||
| age | 20 | |
| visits | member for | 7 months |
| seen | Feb 22 at 9:30 | |
| stats | profile views | 6 |
Self learning
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Dec 14 |
comment |
How can Mathematica solve this set of differential equations? @MarkMcClure After adding initial values. I get the following result: x(t) -> InterpolatingFunction[(0,0),<>](t) y(t) -> InterpolatingFunction[(0,0),<>](t) z(t) -> InterpolatingFunction[(0,0),<>](t) What does that mean? I looked Interpolationg function up, and it didn't gave me much of a clue.. |
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Dec 14 |
comment |
How can Mathematica solve this set of differential equations? @MarkMcClure, I just added an n. Doing this gives me an error NDSolve::ndnco: "The number of constraints (0) (initial conditions) is not equal to the total differential order of the system plus the number of discrete variables (3)." When i add initial conditions I get a really odd result, something with interpolating functions..? (not copyable for some reason..) |
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Dec 14 |
revised |
How can Mathematica solve this set of differential equations? added 1 characters in body |
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Dec 14 |
comment |
How can Mathematica solve this set of differential equations? @MarkMcClure yes, I know it's non-linear, but I also tried the NDSolve, which still got me nowhere... |
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Dec 14 |
asked | How can Mathematica solve this set of differential equations? |
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Oct 25 |
comment |
Can mathematica simplify an expression setting simplified answer equal to zero? But still using that method, when I define a, I want it to fly to the left hand side... as I now know this value it's no longer unknown? Does that make sence? The thing is.. have all these equations ´where a-b==c*d´ and I'm trying to build a matrix, therefore i need to have knowns on one side, and unknowns on the other side. see this: i.imgur.com/jgzo7.png |
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Oct 25 |
awarded | Student |
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Oct 25 |
comment |
Can mathematica simplify an expression setting simplified answer equal to zero? i have : a - b == c * d
c = 1,
therefore, by simplifying mathematica outputs:
a = d + b
Can i output that as
0 = (d+b)/a ?
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All known on one side, all unkown on the other side... |
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Oct 25 |
comment |
Can mathematica simplify an expression setting simplified answer equal to zero? Yeah, but I also have some expressions which equal 1, and I do not want that moved over setting everything to equal zero... Basically I want all unknown on one side. And all that's known (defined) on the other side.. |
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Oct 25 |
awarded | Editor |
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Oct 25 |
revised |
Can mathematica simplify an expression setting simplified answer equal to zero? edited title |
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Oct 25 |
comment |
Can mathematica simplify an expression setting simplified answer equal to zero? Yeah I tried that... But how can you tell it to reduce so you have constants on one side ? |
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Oct 25 |
asked | Can mathematica simplify an expression setting simplified answer equal to zero? |
