\( \DeclareMathOperator{\abs}{abs} \newcommand{\ensuremath}[1]{\mbox{$#1$}} \)
| (%i1) |
A
:
matrix(
[ 1 − l − s· l_s, 1 − l − s· l_s − Nsl_S, M·( l_s + Nl_S)], [ − s· l_S, − Nsl_S, M· Nl_S], [ − s· l_D, − NSl_D, 1 − delta + M· Nl_D + g_D] ) ; |
| (%i2) | invert( A) ; |
| (%i3) |
b
:
matrix(
[ b1], [ b2], [ b3] ) ; |
| (%i8) | x : invert( A). b ; |
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