Properties of Exponents Issue w/ HP Prime
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12-13-2014, 07:24 AM
Post: #16
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RE: Properties of Exponents Issue w/ HP Prime
This is not just a small option. simplify calls normal, and the main algorithm of normal require that all square roots are in the numerator.
You have several commands to rewrite an expression: for example ratnormal does not simplify square roots (they are replaced by a fake identifier and rational normalization is called). As Han wrote, there is no universal simplification command, it depends what you want to do after, that's why you have several rewrite commands on the HP CAS, it's the user job to choose the appropriate one. TI offers much less choice, if their auto-simplification does not return what you expect, it's much more difficult to get what you want. Xcas lets you choose the simplification command that is automatically applied, perhaps the HP could offer the same choice instead of none/minimum/maximum, minimum corresponds to regroup, maximum corresponds to simplify. I do not recommend simplify, because it's much more intrusive and might require time, regroup (or none) is better. |
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