Using the Action Menu
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]
umod
Function: Returns the remainder when one expression is divided by another expression.
Syntax: mod ({Exp/List}
Example: To determine the remainder when 26 is divided by 3 (26mod3)
Menu Item: [Action][Calculation][mod]
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]
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