Using the Action Menu
ulcm
Function: Returns the least common multiple of two expressions.
Syntax: lcm
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 SubmenuThe [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]
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