Rounding Mode

A string that determines how a float is rounded off.

Values

Value	Description
up	Rounds the value away from zero, where the digit prior to a non-zero value is incremented.
down	Rounds the value towards zero, where the float is truncated to the specified decimal places.
ceiling	Rounds the value towards positive infinity. If the value is positive, it behaves like up and if it's negative, it behaves like down.
floor	Rounds the value towards negative infinity. If the value is positive, it behaves like down and if it's negative, it behaves like up.
half_up	Rounds the value towards the "nearest neighbor" unless both neighbors are equidistant, in which case, it'll be rounded up. Behaves like up if the digit is $\gtrapprox 0.5$, otherwise, it behaves like down.
half_down	Rounds the value towards the "nearest neighbor" unless both neighbors are equidistant, in which case, it'll be rounded down. Behaves like up if the digit is $\gt 0.5$, otherwise, it behaves like down.
half_even	Rounds the value towards the "nearest neighbor" unless both neighbors are equidistant, in which case, it'll round towards the even neighbor. Behaves like half_up if the digit to the left is odd, otherwise, it behaves like half_down if it's even.

Examples

updownceilingfloorhalf_uphalf_downhalf_even

Input	Rounded off to 1 digit
$3.54$	$4$
$2.87$	$3$
$1.34$	$2$
$1.0$	$1$
$-1.0$	$-1$
$-1.23$	$-2$
$-2.34$	$-3$
$-3.86$	$-4$

Input	Rounded off to 1 digit
$3.54$	$3$
$2.87$	$2$
$1.34$	$1$
$1.0$	$1$
$-1.0$	$-1$
$-1.23$	$-1$
$-2.34$	$-2$
$-3.86$	$-3$

Input	Rounded off to 1 digit
$3.54$	$4$
$2.87$	$3$
$1.34$	$2$
$1.0$	$1$
$-1.0$	$-1$
$-1.23$	$-1$
$-2.34$	$-2$
$-3.86$	$-3$

Input	Rounded off to 1 digit
$3.54$	$3$
$2.87$	$2$
$1.34$	$1$
$1.0$	$1$
$-1.0$	$-1$
$-1.23$	$-2$
$-2.34$	$-3$
$-3.86$	$-4$

Input	Rounded off to 1 digit
$3.54$	$4$
$2.87$	$3$
$1.34$	$1$
$1.0$	$1$
$-1.0$	$-1$
$-1.23$	$-1$
$-2.34$	$-2$
$-3.86$	$-4$

Input	Rounded off to 1 digit
$3.54$	$4$
$2.87$	$3$
$1.34$	$1$
$1.0$	$1$
$-1.0$	$-1$
$-1.23$	$-1$
$-2.34$	$-2$
$-3.86$	$-4$

Input	Rounded off to 1 digit
$3.54$	$4$
$2.87$	$3$
$1.34$	$1$
$1.0$	$1$
$-1.0$	$-1$
$-1.23$	$-1$
$-2.34$	$-2$
$-3.86$	$-4$