Symbolics > Keywords and Modifiers > About Keywords
When you evaluate an expression using the symbolic evaluation operator, PTC Mathcad simplifies the result by performing arithmetic and combining variables.
To perform more complex symbolic operations, you can insert a keyword that specifies the operation. Keywords appear above the symbolic evaluation operator.
Keywords and the operations they perform follow in the next table:
Keyword
Description
Used with Modifier(s)
Makes assumptions about the domain of the variables.
using
fully
Returns the Cauchy principal value of an integral.
coeffs
Returns the coefficients of a polynomial.
fully
using
Collects terms containing like powers of a variable.
fully
using
Combines terms in an expression using properties of elementary functions.
atan
fully
ln
sinhcosh
using
Calculates the continued fraction expansion of a number or function.
fully
using
Multiplies powers and products from an expression.
fully, using
Returns expressions with the values of variables substituted in place but without reducing numerical expressions.
fully
using
Factors an expression.
complex
fully
using
Returns results with available numeric values reduced using floating-point calculations to the specified precision.
fully
using
fully
Returns a detailed solution to an equation.
None
Expands a rational expression into a sum of fractions with linear or quadratic denominators.
fully
using
Returns results involving complex numbers separated into real and imaginary parts.
fully
using
Rewrites expressions in terms of elementary functions.
acot
fully
asin
atan
cosh
cot
coth
fully
signum
sin
sinhcosh
tan
using
Expands a function or expression in a Taylor or Laurent series around 0.
using
Algebraically simplifies or evaluates an expression.
fully
using
max
Solves an equation symbolically.
using
Replaces all occurrences of a variable, function, expression, or number with another variable, function, expression, or number.
fully
using
Replaces a generated variable in the solution to an equation.
Evaluates the transform or inverse transform of a function.
fully
using
raw