fx-9860GII TI-83
abs
On a Texas Instruments calculator you can calculate an absolute value
MATH ► 1
or via the catalog as
CATALOG ⎵ 2nd 0 ►abs( ENTER
Example 1
To calculate | 2 − 7 | × 2 = 10
MATH ► 1 abs( 2 − 7 ) × 2 ENTER abs(2-7)∗2 10
Example 2
To calculate the complex modulus of | 3 + 4i | = 5
i : MATH ► ► 5 abs( 3 + 4 2nd • ENTER abs(3+4i 5