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This section covers the Calc features that help you work with algebraic formulas. First, the general sub-formula selection mechanism is described; this works in conjunction with any Calc commands. Then, commands for specific algebraic operations are described. Finally, the flexible rewrite rule mechanism is discussed.
The algebraic commands use the a key prefix; selection commands use the j (for "just a letter that wasn't used for anything else") prefix.
See section 6.2 Editing Stack Entries, to see how to manipulate formulas using regular Emacs editing commands.
When doing algebraic work, you may find several of the Calculator's modes to be helpful, including algebraic-simplification mode (m A) or no-simplification mode (m O), algebraic-entry mode (m a), fraction mode (m f), and symbolic mode (m s). See section 7. Mode Settings, for discussions of these modes. You may also wish to select "big" display mode (d B). See section 7.8.1 Normal Language Modes.
11.1 Selecting Sub-Formulas 11.2 Algebraic Manipulation 11.3 Simplifying Formulas 11.4 Polynomials 11.5 Calculus 11.6 Solving Equations 11.7 Numerical Solutions 11.8 Curve Fitting 11.9 Summations 11.10 Logical Operations 11.11 Rewrite Rules
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