computer science & engineering 2111 lecture 2 basic functions, common excel errors, cell...

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Computer Science & Engineering 2111

Computer Science & Engineering 2111

Lecture 2Basic Functions, Common Excel Errors, Cell Addressing

CSE 2111 Lecture 2-Basic Functions and Cell Addressing

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Common Excel Errors

Unusual symbols

Green triangles


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Common Excel Errors

Numbers that don’t add up correctly

(Precision Vs. Formatting)CSE 2111 Lecture 2-Basic Functions and

Cell Addressing

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FunctionsHow does a function work?• Functions take arguments and return a result• Algorithm

A step-by-step procedure for accomplishing some end task.

• Result The value calculated by the function


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Format or Syntax of a Function

Syntax• Specific format required to use a function its name and

order of arguments• Function Syntax is not case sensitive

Format or syntax of a function• =Function Name(arguments)

• Arguments– Argument variables are used by the function to calculate

the result. Arguments appear in a specific order.


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Examples of Syntax=SUM(number1, [number2], …)

=SUM(A1:A4, A1:D4, A1, D3:D5,7, markup) * 3

• A1:A4 - Range along a column• A1:D4 - A two-dimensional range (Block)• markup – Named Range

ArgumentRequired

ArgumentOptional

Many more arguments


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Common Functions


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Round Function


Syntax: =ROUND(number, num_digits)

number: Number to be rounded

num_digits: Number of decimal places

Round to: digit Formula Resultnearest whole number 0 =ROUND(2738.252,0) 2,738.000nearest tenth 1 =ROUND(2738.252,1) 2,738.300nearest hundreth 2 =ROUND(2738.252,2) 2,738.250

nearest tens -1 =ROUND(2738.252,-1) 2,740.000nearest hundreds -2 =ROUND(2738.252,-2) 2,700.000

9CSE 2111 Lecture 2-Basic Functions and

Cell Addressing

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Type in Function or use the Function Wizard

• Function wizard: A short-cut to all the functions in excel (use fx toolbar button) that walks you through building a function


Blank Cells when using certain functions

Blank Cells are ignored

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Insert a row between 2 and 3 and add the order# 301 with the quantity of 1,000

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Excel Error Messages

• ##### - Numeric value too wide to display

• #DIV/0! - Divide by 0 or blank cell occurs

• #N/A - Data being referenced is not available

• #NAME? - Text in formula is not recognized

• #NUM! - Problem with a number in a formula or function

• #REF! - Cell reference is not valid

• #VALUE! - Wrong type of argument or operand in a formula


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Copying Formulas withRelative cell referencing

• Automatically adjusts formula cell references when formula is copied.


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Copying Formulas withMixed cell referencing

Keeps the column or the row reference in the formula the same when copying the formula (Signified by $)


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Copying Formulas withAbsolute cell referencing

Keeps the column and the row reference in the formula the same when copying the formula (Signified by $ in front of column and row)


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Hard Coding values

Typing in the value in a formula or function instead of a cell reference• What if service charge changes to 8%?


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Named Ranges

You can name a cell or a group of cells and use that name in your formulas.• Treated as an absolute cell reference


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Copy the formula in cell A1 across to cell C1 and down to cell C4


Fill in the Grid

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A B C

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2 =A11+D4

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Fill in the Grid

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A B C

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2 =A$11+$D4

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Fill in the Grid

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A B C

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2 =$A$11+D$4

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Fill in the Grid

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