Riktningsfält
Exempel 1.
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(5.1) |
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(5.2) |
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![DEplot(ode1, y(x), x = 0 .. 50, y = -2 .. 15, [[y(0) = 5.5], [y(0) = 4.5], [y(0) = 14]], arrows = MEDIUM, linecolour = [RED, GREEN, BLUE]); 1](images/newode2_80.gif){kind=small}
![DEplot(ode1, y(x), x = 0 .. 50, y = -2 .. 15, [[y(0) = 5.5], [y(0) = 4.5], [y(0) = 14]], arrows = MEDIUM, linecolour = [RED, GREEN, BLUE]); 1](images/newode2_81.gif){kind=small}
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Exempel 2.
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(5.3) |
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![DEplot(ode, y(x), x = -3 .. 3, y = -3 .. 3, [[y(1) = -2], [y(1) = 2]], arrows = MEDIUM, linecolour = [BLUE, GREEN], stepsize = 0.1e-2); 1](images/newode2_88.gif){kind=small}
![DEplot(ode, y(x), x = -3 .. 3, y = -3 .. 3, [[y(1) = -2], [y(1) = 2]], arrows = MEDIUM, linecolour = [BLUE, GREEN], stepsize = 0.1e-2); 1](images/newode2_89.gif){kind=small}
| Warning, plot may be incomplete, the following errors(s) were issued: |
| cannot evaluate the solution further left of -1.4422499, probably a singularity |
| Warning, plot may be incomplete, the following errors(s) were issued:
cannot evaluate the solution further right of 1.7099760, probably a singularity |
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(5.4) |
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(5.5) |