DELTA function
This article describes the formula syntax and usage of the DELTAfunction in Microsoft Excel.
Description
Tests whether two values are equal. Returns 1 if number1 = number2; returns 0 otherwise. Use this function to filter a set of values. For example, by summing several DELTA functions you calculate the count of equal pairs. This function is also known as the Kronecker Delta function.
Syntax
DELTA(number1, [number2])
The DELTA function syntax has the following arguments:

Number1 Required. The first number.

Number2 Optional. The second number. If omitted, number2 is assumed to be zero.
Remarks

If number1 is nonnumeric, DELTA returns the #VALUE! error value.

If number2 is nonnumeric, DELTA returns the #VALUE! error value.
Example
The example may be easier to understand if you copy it to a blank worksheet.
How do I copy an example?

Select the example in this article.
Important Do not select the row or column headers.
Selecting an example from Help

Press CTRL+C.

In Excel, create a blank workbook or worksheet.

In the worksheet, select cell A1, and press CTRL+V.
Important For the example to work properly, you must paste it into cell A1 of the worksheet.

To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.
After you copy the example to a blank worksheet, you can adapt it to suit your needs.

