ABS, CONBIN FUNCTIONS

ABS Function:
I have given here description of the formula syntax and usage of the ABS function in Microsoft Excel.
 
Description
Returns the absolute value of a number. The absolute value of a number is the number without its sign.
 
Syntax
ABS(number)
 
The ABS function syntax has the following arguments:
Number    Required. The real number of which you want the absolute value.
 
How to find the absolute number from the selected cell?
Type the function as follows in the cell that you would like to get the result in: =ABS(K3)
 
For more understanding, look at the screenshot please:

COMBIN function:
I have given explanations here about formula syntax and usage of the COMBIN function in Microsoft Excel.

Description
Returns the number of combinations for a given number of items. Use COMBIN to determine the total possible number of groups for a given number of items.

Syntax
COMBIN(number, number_chosen)

The COMBIN function syntax has the following arguments:
Number    Required. The number of items.
Number_chosen    Required. The number of items in each combination.

Remarks
Numeric arguments are truncated to integers.
If either argument is nonnumeric, COMBIN returns the #VALUE! error value.
A combination is any set or subset of items, regardless of their internal order. Combinations are distinct from permutations, for which the internal order is significant.
 
How to find the combinations for a give number of items (Ex: 36, 7)?
Type the function as follows in the cell that you would like to get the result in: =COMBIN(36, 7)
 
For more understanding, look at the screenshot please: