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Formula Manipulation and Simplification

Simplify or modify expressions, substitute parts of expressions

Transform your expression into the particular form you require (expanded, factored, or expressed in particular terms) by choosing the appropriate function. See Choose Function to Rearrange Expression. If you just need a simpler expression, use simplify. You also can substitute for any part of an expression with another value by using subs.

Functions

simplify Algebraic simplification
simplifyFraction Symbolic simplification of fractions
subexpr Rewrite symbolic expression in terms of common subexpressions
pretty Prettyprint symbolic expressions

Polynomials & Fractions

coeffs Coefficients of polynomial
expand Symbolic expansion of polynomials and elementary functions
horner Horner nested polynomial representation
numden Extract numerator and denominator
partfrac Partial fraction decomposition

Rewriting & Decomposition

children Subexpressions or terms of symbolic expression
collect Collect coefficients
combine Combine terms of identical algebraic structure
compose Functional composition
divisors Divisors of integer or expression
factor Factorization
rewrite Rewrite expression in terms of another function

Display

pretty Prettyprint symbolic expressions
subexpr Rewrite symbolic expression in terms of common subexpressions
subs Symbolic substitution

Topics

Choose Function to Rearrange Expression

Several functions are available to manipulate expressions. Understand which function to use.

Simplify Symbolic Expressions

Simplifying symbolic expressions, including assumptions and additional options.

Substitute Variables in Symbolic Expressions

Substitute variables with other variables, numbers, vectors, or matrices.

Use subs to Evaluate Expressions and Functions

Evaluate expressions and functions after their variables are assigned values.

Abbreviate Common Terms in Long Expressions

Simplify the display of long expressions by abbreviating common terms.

Featured Examples

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