Where are absolute value and greatest integer located on the TI?

Where are absolute value and greatest integer located
on the TI?
On the MATH menu.
•
Hit MATH.
•
Arrow right to NUM.
•
abs( opens up absolute value.
•
int( opens up greatest integer.
Here’s a graph of y =| 2 x − 1| :
And of y = a 2 x b :
Note that since the greatest integer
function is a piecewise function with
jumps, I had to switch the MODE from
Connected to Dot.