Expansion not working - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Expansion not working (/thread-12723.html) Expansion not working - borao - 04-01-2019 06:22 PM Hello. I am trying to use expand(rref()) and the result is rational with polynomials in the numerator and denominator. When I copy the result and paste, then factor, the polynomial is factored but the partial fraction expansion returns an ugly fourth degree polynomial for something that should be second degree. Is there something I'm missing, or another command. My professor uses the TI Nspire and he said expand(rref should work. Is there an analogue to TI's expand for Prime? RE: Expansion not working - Tim Wessman - 04-02-2019 02:36 AM Please provide a complete example showing what you want to enter and what to expect as a result else people probably won't be able to help much. RE: Expansion not working - parisse - 04-02-2019 05:33 AM Try partfrac RE: Expansion not working - Aries - 04-02-2019 11:42 AM (04-01-2019 06:22 PM)borao Wrote:  Hello. I am trying to use expand(rref()) and the result is rational with polynomials in the numerator and denominator. When I copy the result and paste, then factor, the polynomial is factored but the partial fraction expansion returns an ugly fourth degree polynomial for something that should be second degree. Is there something I'm missing, or another command. My professor uses the TI Nspire and he said expand(rref should work. Is there an analogue to TI's expand for Prime? Could you please share an example of the expression ? So long, Aries