ABS Formula
This function
calculates the value of a number, irrespective of whether it is positive or
negative.
Number
|
Absolute Value
|
||||||
10
|
10
|
=ABS(C4)
|
|||||
-10
|
10
|
=ABS(C5)
|
|||||
1.25
|
1.25
|
=ABS(C6)
|
|||||
-1.25
|
1.25
|
=ABS(C7)
|
|||||
What Does it Do ?
|
|||||||
This
function calculates the value of a number, irrespective of whether it is
positive or negative.
|
|||||||
Syntax
|
|||||||
=ABS(CellAddress or Number)
|
|||||||
Formatting
|
|||||||
The
result will be shown as a number, no special formatting is needed.
|
|||||||
Example
|
|||||||
The
following table was used by a company testing a machine which cuts timber.
|
|||||||
The
machine needs to cut timber to an exact length.
|
|||||||
Three
pieces of timber were cut and then measured.
|
|||||||
In
calculating the difference between the Required Length and the Actual Length
it does
|
|||||||
not
matter if the wood was cut too long or short, the measurement needs to be
expressed as
|
|||||||
an
absolute value.
|
|||||||
Table 1
shows the original calculations.
|
|||||||
The
Difference for Test 3 is shown as negative, which has a knock on effect
|
|||||||
when the
Error Percentage is calculated.
|
|||||||
Whether
the wood was too long or short, the percentage should still be expressed
|
|||||||
as an
absolute value.
|
|||||||
Table 1
|
|||||||
Test
Cut |
Required
Length |
Actual
Length |
Difference
|
Error
Percentage |
|||
Test 1
|
120
|
120
|
0
|
0%
|
|||
Test 2
|
120
|
90
|
30
|
25%
|
|||
Test 3
|
120
|
150
|
-30
|
-25%
|
|||
=D36-E36
|
|||||||
Table 2
shows the same data but using the =ABS() function to correct the
calculations.
|
|||||||
Table 2
|
|||||||
Test
Cut |
Required
Length |
Actual
Length |
Difference
|
Error
Percentage |
|||
Test 1
|
120
|
120
|
0
|
0%
|
|||
Test 2
|
120
|
90
|
30
|
25%
|
|||
Test 3
|
120
|
150
|
30
|
25%
|
|||
=ABS(D45-E45)
|