Common Functions in I.T.

8/8/2019 Common Functions in I.T.

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Common Functions.ppt


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Functions

=Sum(A1:B3,5)

FormulaStructure

Equalsign

Function

name

argumen

ts

are predefined formulas thatperform calculations by usingspecific values, called arguments, ina particular order, or structure.


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Arguments can be:

Numbers

Textlogical values, such as TRUE or FALSE

cell references

other functions

=Sum(A1:B3,

5)

Formula

Structure

Equalsign

Functionname

arguments


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Basic Excel formula

C2 =A2+A3+A4+B2+B3+

B4Function formula

C2 =Sum(A1:B4)

Supposed we are to

get the sum of allthe values ofColumn1 andColumn2

Example:

A B C

1 column1 column2Sum

2 1 2

3 3 4

4 5 6


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Sum Adds a list of numbers.

Average Calculates the average value of a listof numbers.

Count Calculates the number of values in alist

Max Finds the largest value in a list ofnumbers.

Min Finds the smallest value in a list ofnumber.


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By Using the function button.

By typing the function yourself.

Similar with formula, select the cell where youwant the result to appear.

Then type the equal sign (=), enclose the cellreferences in parentheses ( ) and separate thecell references with commas (,) or a colon (:).


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Common Errors Encountered when Using MS Excel


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##### - The column is too narrow to display the result of the calculation.


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Error!

Errors in Formulas Circular Reference means the entered cell values is the

same location where the formula is entered

E2


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#DIV/0 The formula divides a number by zero (0).

Excel considers a blank cell to have a value of zero.

#Name? The formula contains a function name orcell reference Excel does not recognize. Like incorrect

typing of a cell reference.

#Ref! Means that the formula refers to a cell that is

not valid. Like a row containing a cell used in the

formula was deleted.

Errors in Formulas


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#Value! Means the formula refers to a cell that Excel cannot use in acalculation. Like when the data in a cell used in the formula contains text.

#N/A Value not available.

#Num! Invalid number values


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9/28/2008Ms. Jennifer Ventus


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Adds all the numbers in a range of cells.

Syntax:

SUM(num1,num2,)

Where:num1,num2, are 1 to 30 arguments for which

you want the total value or sum.



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Note:If an argument is an array or reference, only numbers in that

array or reference are counted. Empty cells logical values,

text, or error values in the array or reference are ignored.

Example:



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Returns the average of the arguments.

Syntax:

AVERAGE(num1,num2,)

Where:num1,num2, are 1 to 30 arguments for which you

want the average



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Note:

The arguments must be either numbers, names, reference

that contain numbers.

If an array or reference argument contains text, logical

values, or empty cells, those values are ignored; however,

cells with the value zero are included.



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Returns the largest value in a set of values.

Syntax:

MAX(number1,number2,...)

Where:number1, number2, ... are 1 to 30 numbers for

which you want to find

the maximum value.

Example



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Returns the smallest number in a set of values.

Syntax

MIN(number1,number2,...)

Where:

Number1, number2, ... are 1 to 30 numbers for which yo

want to find the minimum value.

Example



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Searches for a value in the leftmost column of the table, and

then returns a value in the same row from a column

specified in the table.

Syntax:

VLOOKUP(X,Y,Z)

Where:

X is the value to be found in the first column of the

array. X can be a value, a reference, or a text string.

Y is the table of information in which data is looked up.

Use a reference to a range or a range name.

Z is the column number in Y from which the

matching value must be returned.9/28/2008Ms. Jennifer Ventus


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Example



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returns one value if a condition specified evaluates to TRUE

and another value if it evaluates to FALSE.

Syntax:

IF(X,Y,Z)

Where:

X is the value or expression that can be evaluated to

TRUE or FALSE.

Y is the value that is returned if X is TRUE.

Z is the value that is returned if X is FALSE.



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If average


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Counts the number of cells within a range that meet the

given criteria.

Syntax

COUNTIF(range,criteria)

Where:Range is one or more cells to count, including

numbers or names, arrays, or references that

contain numbers. Blank and text values are

ignored.

Criteria is the criteria in the form of a number,

expression, cell reference, or text that defines

which cells will be counted. For example,

criteria can be expressed as 32, "32", ">32",

"apples", or B4.

Example


9/28/2008M J if V t


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Common Functions.ppt

Common Functions in I.T.

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