Press to view the Math NUM menu.

Press the menu key associated with a symbol.

Press to view more options.

Press to select round
which rounds a number to a given number of places.

Press to select
iPart which returns the integer part of a number.

Press to select fPart
which returns the fractional (decimal) part of a number. This is
the same as the number minus its integer part.

Press to select
int which returns the greatest integer less than or equal to the argument.

Press and select
abs to find the absolute value of a real or complex number.

Press
to select sign which finds the sign of a number x as x/|x| for
nonzero x and 0 if x is 0.

Press
to select min
which returns the smaller of two arguments.

Press
to select max which returns the larger of the two arguments.

Press
to select modulo which finds the remainder
when the first argument is divided by the second.

The options `round`

, `min`

, and `max`

take two arguments each, separated by a comma, and enclosed by a pair of
parentheses.

These functions can be evaluated on each
element in a list. For example,

`fpart { 1.23 , 4.32 , 1.5 , -2.333 }`

returns `{ .23 .32 .5 -.333 }`

.