2-8-19

Using the Action Menu

ulcm

Function: Returns the least common multiple of two expressions.

Syntax: lcm (Exp/List-1, Exp/List-2 [ ) ]

Example: To obtain the least common multiple of x2 – 1 and x2 + 2x – 3

Menu Item: [Action][Calculation][lcm]

udenominator

Function: Extracts the denominator of a fraction.

Syntax: denominator (Exp/List [ ) ]

Example: To extract the denominator of the fraction (y – 2)/(x + 1)

Menu Item: [Action][Calculation][denominator]

unumerator

Function: Extracts the numerator of a fraction.

Syntax: numerator (Exp/List [ ) ]

Example: To extract the numerator of the fraction (y – 2)/(x + 1)

Menu Item: [Action][Calculation][numerator]

Using the Complex Submenu

The [Complex] submenu contains commands that relate to calculations that involve complex numbers.

uarg

Function: Returns the argument of a complex number.

Syntax: arg (Exp/Eq/List/Mat [ ) ]

Example: To obtain the argument of complex 2 + i (in the Radian mode)

Menu Item: [Action][Complex][arg]

20080201