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| 1041 | Volume 05 | 1941 | 1042 | Volume 05 | 8-Sep-41 |
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Summary: In the specification of a system with step-functions present, the latter cannot be
specified by differential equation form. It seems that our equations for the system
must be in form { dxi/dt = fi(x;y), y'i = ai+bistp{Vi(x;y)} } or { xi = Fi(x0;y;t), y'i = ai+bistp{Vi(x;y)} }. And as these define the future behaviour of the x's, and as in any case they can usually be solved only numerically, we might as well
leave them in this state. (Compare 1048) (Better 1086) |
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Step function in differential equations 1047 |
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| This page references 2 pages: 1048 1086 |
| This image is reproduced courtesy of The Estate of W. Ross Ashby. Copyright 1972, 2008 © The Estate of W. Ross Ashby |
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