Overview
Comment: | Back to RCS |
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SHA3-256: |
6657031eb6c0918e0d9897edb26bcfb3 |
User & Date: | gawthrop@users.sourceforge.net on 1999-04-02 02:13:58 |
Other Links: | branch diff | manifest | tags |
Context
1999-04-02
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06:22:53 |
Handles switches by deleting, not zeroing appropriate matrix entries. Avoids problem with rounding error. check-in: 2a3c57d776 user: gawthrop@users.sourceforge.net tags: origin/master, trunk | |
02:13:58 | Back to RCS check-in: 6657031eb6 user: gawthrop@users.sourceforge.net tags: origin/master, trunk | |
1999-03-30
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21:39:25 |
In implicit approach, set derivatives to zero (when switch is off) before update. This seems to stop numerical leakage though non-return switches. check-in: c73a1c2553 user: gawthrop@users.sourceforge.net tags: origin/master, trunk | |
Changes
Modified mttroot/mtt/bin/trans/make_ode2odes from [de3020d4fa] to [db3c414234].
1 2 3 4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | - + + + + + + | #! /bin/sh ###################################### ##### Model Transformation Tools ##### |
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121 122 123 124 125 126 127 | 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | - + | [MTTx] = mtt_euler(MTTx,MTTdx,MTTddt,$Nx); # Euler update [MTTx] = $1_switch(MTTx); # Switches MTTt = MTTt + MTTddt; endfor; endif; if mttmethod==2 # Implicit [MTTdx] = $1_ode(MTTx,MTTu,MTTt); # State derivative |
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