SILS iSchool

17 Oct 2018

Value Added | daily

Class Schedule

Basics | sessions 01-05

22 AUG | intro
27 AUG | clients
29 AUG | servers
05 Sep | networks
10 Sep | basics lab

Web Development | sessions 06-11

12 Sep | structural layer
17 Sep | presentational layer
19 Sep | working with layers
24 Sep | behavior layer
26 Sep | images & design
01 Oct | website lab

Document Markup | sessions 12-14

03 Oct | object layers
08 Oct | graphics
10 Oct | document markup lab

Spreadsheets | sessions 15-19

15 Oct | spreadsheets

 17 Oct  | formulas |  functions  | all functions | practice exercises | next session

22 Oct | data display
 18 Oct | Fall Break 
24 Oct | database tools
29 Oct | spreadsheets lab

Relational Database | sessions 20-26

31 Oct | relational databases
05 Nov | tables
07 Nov | relationships
12 Nov | input & output
14 Nov | SQL
19 Nov | complex queries
26 Nov | databases lab
 21 Nov | Thanksgiving 

Presentation | sessions 27-30

28 Nov | presentation design
03 Dec | presentation delivery
05 Dec | presentation lab
12 Dec | 0800-1100 | final in class presentation

Functions are built-in specialized algorithms.
They can apply to an individual cell or to a range of cells, on the same spreadsheet,
or on another worksheet in the same workbook,
or on another worksheet in another workbook.

Functions are built-in specialized algorithms

use the formula example for function demonstrations too

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A formula starts with =, and is followed by mathematical operators and cell addresses

For example:


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A function is a predefined formula that performs a mathematical operation on a group of cells

For example:

means equalsadd together the contents of cells D4 through D7
or equalsD4+D5+D6+D7

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Functions have three parts

  1. the = sign which tells Excel that a formula or function follows
  2. the function name such as SUM for addition or AVERAGE for determining the average of a series of numbers
  3. the argument on which the particular function operates must be enclosed by parentheses, and it contains the cell references so that the function knows which cells to calculate
  4. this naming logic is very similar to what we have seen before where a function is applied to a range of cells

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options for entering formulas into the spreadsheet

  1. in the formula bar
  2. directly into the cell
  3. use the name box
  4. OR use the Function Wizard to help you create the desired results
[MSExcel 2014 displaying a power function]

The same is true in Excel for Mac

[MSExcel 2013 displaying a power function]

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Examples of functions

  • =SUM(D4,I48,V65)
  • =AVERAGE(D1:D18)

Functions can perform mathematical operations on a group of cells

equalsadd togetherthe contents of cells D4 through D7
or equalsD4+D5+D6+D7

For argument of function:

if individual cells, use commas

equalsadd D2 and D3 and D5

if a range of cells, use a colon

= SUM(F2:F4,F7:F17)
equalsaddF2 through F4 and F7 through F17together

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Tools to help decide on the function to use

Insert Function or fx function wizard or hit = and then the function draw down box. The Function dialog box has Function Category & Function Name plus a short explanation of what the function does.

[MSExcel 2007+ find function dialog box]

The same is true in Excel for Mac

[MSExcel 2013 find function dialog box]

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Common Functions include:

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