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For substituting kernels in standard forms or standard quotients by other kernels or arbitrary algebraic expressions the following functions are available :
subf(f,a) | substitute a in SF f |
subsq(q,a) | substitute a in SQ q |
where a is a list of pairs, each with a kernel to be replaced in the car and its replacement as algebraic form in the cdr 13, e.g.
Here x is replaced by 5 while y is replaced by a + b.
Note that
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