2-7-6

Using the Action Menu

ucombine

Function: Transforms multiple fractions into their common denominator equivalents and reduces them, if possible.

Syntax: combine (Exp/Eq/Ineq/List/Mat [ ) ]

• Ineq (inequality) includes the “≠” (not equal to) relational operator. Example: To transform and reduce (x + 1)/(x + 2) + x(x + 3)

Menu Item: [Action][Transformation][combine]

ucollect

Function: Rearranges an expression with respect to a specific variable.

Syntax: collect (Exp/Eq/Ineq/List/Mat[,Exp] [ ) ]

• Ineq (inequality) includes the “≠” (not equal to) relational operator. Example: To rearrange x2 + ax + bx with respect to x

Menu Item: [Action][Transformation][collect]

• “x” is the default when you omit “[,Exp]”.

uinvert

Function: Inverts two variables in an expression.

Syntax: invert (Exp/Eq/Ineq/List [,variable-1, variable-2] [ ) ]

•Ineq (inequality) includes the “≠” (not equal to) relational operator. Example: To invert x and y in the expression 2x = y

Menu Item: [Action][Transformation][invert]

• x and y are inverted when variables are not specified.

utExpand

Function: Employs the sum and difference formulas to expand a trigonometric function.

Syntax: tExpand(Exp/Eq/Ineq/List/Mat [ ) ]

• Ineq (inequality) includes the “≠” (not equal to) relational operator. Example: To expand sin (a + b)

Menu Item: [Action][Transformation][tExpand]

20050501