2013-08-08 13:02:54 +0200 | commented answer | Auto-substitute complex term to ease numeric evaluation Thank you, but unfortunately, the automatisation (or more specifically the automatic detection of possible substitutions) is what I really need. |

2013-08-07 12:55:32 +0200 | received badge | ● Editor (source) |

2013-08-07 12:55:00 +0200 | asked a question | Auto-substitute complex term to ease numeric evaluation I have a very large symbolic term (mainly composed of sums, products and divisions) and, using substitutions, I want to reformulate it in a way that avoids repetitions and thus can be evaluated using less arithmetic operations. For example, if I have a term like I want a function that returns something like: Giving me instructions how to more efficiently calculate X: First calculate S1, then S2 using S1 and finally X using S1 and S2. My actual problem is much nastier and I do not need optimal or near-optimal results, but any way of automatising such substitutions. |

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