lecture 4 - creating simple formula

7/25/2019 Lecture 4 - Creating Simple Formula

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Ms-Excel

Lecture 4


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Agenda

Use functions

Use the AutoSum button

Use the AutoSum list Use Formula AutoComplete

Insert functions in formulas

Edit functions

Use the AutoCalculate feature

Use range borders to modify formu

Check formula errors


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What is a Formu

Formulas are used to percalculations on values entered intocells of a worksheet. hey consist o

addresses of the cells containingvalues! constant values and appropriate mathematical operatorsFor e"ample! to add

the numbers in cellsC# and $#! youwould type theformula %C#&$#.


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Mathematical Operato

Operator Performs

& Addition

' Subtraction( )ultiplication

* $ivision

+ ,ercentage

- E"ponentiation ,ower/


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Using Formula

Since formulas use cell addresses!automatically recalculate whenevevalue in any cell used in the for

changes. 0hen a cell containinformula is selected! the forappears in the formula bar andcalculated results of the for

appear in the cell.


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Mathematical Operato

Operat

or

Performs

/ Controls the order of mathe

operations1 calculations parentheses are performed 2

+ Converts a number i

percentage1 for e"ample! fE"cel reads the value as .34

- E"ponentiation1 for e"amp

5-#! E"cel reads the value as


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Precedence

In case of using more than one opein a formula! it is calculated usingstandard mathematical order

precedence. he order of precedenas follows6

parentheses

e"ponentiation

multiplication and division

addition and subtraction

For e"ampresult of $4% on thhand the re&!"'#4 is


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Auto*orrect

E"cel7s Auto*orrect feature idenand o8ers suggestions on commistakes made while entering form

If an error is found! either accepcorrection provided or correct formula manually.

For e"ample!if a formula is entered +A$!,$!!Auto*orrect will suggethe formula+A$!,$.


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Anatom of a Formu

Formula begins with an e9ual sign the cell where result is re9uired.

Cell addresses can be either type

selected using the mouse or keybEach referenced cell have colborders with s9uares at their corner.

Enter arithmetic operators in the fo

wherever appropriate.


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*onstructing a Formu

ype an e9ual sign +/ to begin theformula.

Enter the 2rst cell referenced in the

formula.

Enter the 2rst mathematical operat

Enter the ne"t cell referenced in th

formula. Continue entering cell references a

mathematical operators as needed

0hen 2nished creating the formulaEnter


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Entering Formula

*ellcontainingFormula

*ell contentsin theFormula ,ar

*ells referredin the formula

Cell addrescase sensitaddress can

as either:owever! .Enter/ keyE"cel auchanges references

uppercase.


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Using Functions

E"cel has built'in functions thatshortcuts for formulas. Functionsspecial pre'written formulas that per

an operation on values or rangevalues and return the result to a cthe worksheet. Functions can be use

simplify and shorten formulasworksheets! especially those perform lengthy or comple" calculat

e a ormu a a unc on a so s ar s


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Using Functions

e a ormu a! a unc on a so s ar san e9ual sign %/ followed by function's name and! its argumenclosed in parentheses. he funuses the arguments in its calculatArguments may be none! cell addrevalues! labels! or even other functio

formulas! or a combination of these.FU1*23O11AMEA5UME12&6'


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Using Functions

Functions are most commonly used to pecalculations on a range of cells. For e"amis easier to use the %6UM&A$7A8' functadd the numbers in cellsA$ throughA8to type the fo+A$!A!A"!A4!A0!A9!A8

E"cel provides help in the form function Screenip. It displays structure of the function i.e.!function name and the order ore9uired arguments/.

he most commonly used functio


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Using Auto6um

he most commonly used functiothe 6UM function! which calculatetotal of the values in a range of Since the 6UM function is fre9uently! there is an Autobutton on the Formulas ta: ini::on that enters the formula in

active cell. Auto6umis an easy wsum values in a row or column worksheet.

n c c ng t e uto um utto


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n c c ng t e uto um uttosuggested range for the funappears. A blinking! colored bocalled a range 2nder de2nes suggested range.

If clicked at the end of a rowcontiguous row of values to the le

the active cell is suggested. If clicked at the bottom of a column

contiguous column of values abovactive cell is suggested.Using Auto6um

If there are values both above and


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If there are values both above andleft of the active cell! the concolumn of values above the activesuggested.

If the suggested range is incorrectbe changed by dragging to select tcontaining the values to calculate.

he Auto6um button provides anwhich! when clicked! displays a other functions can be used on thwithin the selected range.Using Auto6um


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Using Auto6um

3. Select the cell whereto enter the formula.

5. Click the left'hand partof the Auto6umbutton in theFunction Li:rargroup on theFormulas ta:)

#.,ress .Enter/)

arrow which displays a list of o


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Using Auto6um List

arrow! which displays a list of ofunctions that can be performeconsecutively 2lled cells in a colum

row. Each of these functions automat

use the cell range immediad=acent to the active cell for

suggested range. If suggested range is incorrect! it can be changedragging to select the cells contathe values

FU1*23 E;AMPLE


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FU1*23

O1

E;AMPLE E?A@

E

%A>E?A@EA36A

54!4/

?eturns the average of

numbers1 if a cell in th

empty! it is not used in calc

average1 if a cell in

contains the number ero!

calculating the average

)AB %)ABA36A54/ ?eturns the highest value of numbers

)I %)IA36A54/ ?eturns the lowest value in

numbersC


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Auto6um

3. Select the cell where to enter the form

5. Select the arrow on the Auto6um :utthe Function Li:rar group oFormula ta:)

#. Select the desired function.

D. $rag to select the range! if necessary.

. ?elease the mouse button.

. ,ress .Enter/)Click the More Functionscommand in the Auto6um toaccess all E"cel functions!opening 3nsert Function$ialo .


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he Formula Auto*omplete fedisplays valid functions! names and strings that match the letters in a dyn

drop'down list. ?e2ne the range of opby continuing to type trigger letters or through the list using keys on the keybo

Formula Auto*omple


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2ips

.entering the endpoints of a rangefunction A3.A/.


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argument and some have optarguments.


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3nsert FunctionsWiard

o open the 3nsert Functiondialog bo".

Click the 3nsert Function

:utton in the formula bar. Select the on the 3nsert

Function :utton in theFunction Li:rar group on

the Formula ta: ,ress .6@3F2/ ! .F"/ from

keyboard.


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3nsert FunctioWi

Search bo" help 2ndingthe function needed.

Function category

;ist of the functionswithin selected

category.

i l l l i l d


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Auto*alculate

simple calculation on a selected racells without making you supply a fo

he result of the calculation

temporary! appears on the Status are not placed in the worksheet.

y default! three of the Auto*alfunctions Aerage! *ountand 6uenabled in the Status ar and will their results as soon as a range ocontaining values is selected)

"ce ent es ts range re erenc


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ange ,orders -ModiFormulas

"ce ent es ts range re erencthe formula by displaying themdi8erently colored borders! with shandles at each corner.

User can change the argumentsformula by $ragging a range border to inclu

di8erent group of range. )oving the range border to referen

entirely di8erent range.


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ange ,orders -ModiFormulas

Changing the sie ofthe border to includemore or fewer cells.

he correspondingrange reference inthe formula changes

accordingly.

E"cel provides an error check


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E"cel provides an error checkfeature that automatically checformulas against a pre'e"isting set

rules. If a formula breaks a rule! error indicator appears in the forma colored triangle in the corner of tcell containing the suspect formula

*hecBing Formula Erro

lecture 4 - creating simple formula

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