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The Maxima on-line user's manual

Algebra Calculator

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Ratdenomdivide Calculator

Ratdenomdivide

-- Option variable: ratdenomdivide Default value: true

When ratdenomdivide is true, ratexpand expands a ratio in which the numerator is a sum into a sum of ratios, all having a common denominator. Otherwise, ratexpand collapses a sum of ratios into a single ratio, the numerator of which is the sum of the numerators of each ratio.

((k1*(exp(-p*A0))*(T2*p+1)+k2*(exp(-p*t0))*(T1*p+1))*k1*k2)/((T1*p+1)*(T2*p+1)*(T3*p+1)*(T4*p+1));
ratexpland(), ratdenomdivide: false;

Examples:

          (%i1) expr: (x^2 + x + 1)/(y^2 + 7);
                                      2
                                     x  + x + 1
          (%o1)                      ----------
                                        2
                                       y  + 7
          (%i2) ratdenomdivide: true$
          (%i3) ratexpand (expr);
                                 2
                                x        x        1
          (%o3)               ------ + ------ + ------
                               2        2        2
                              y  + 7   y  + 7   y  + 7
          (%i4) ratdenomdivide: false$
          (%i5) ratexpand (expr);
                                      2
                                     x  + x + 1
          (%o5)                      ----------
                                        2
                                       y  + 7
          (%i6) expr2: a^2/(b^2 + 3) + b/(b^2 + 3);
                                               2
                                     b        a
          (%o6)                    ------ + ------
                                    2        2
                                   b  + 3   b  + 3
          (%i7) ratexpand (expr2);
                                            2
                                       b + a
          (%o7)                        ------
                                        2
                                       b  + 3

(%o1)                                true
(%i2) 

Ratdenomdivide Example

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