13/14 Semester 1
Computer Programming
(TKK-2144)
Instructor: Rama Oktavian
Email: rama.oktavian@ub.ac.id
Office Hr.: M.13-15, W. 13-15 Th. 13-15, F. 13-15
Outlines
1. Introduction to Microsoft Excel
2. Introduction to Spreadsheet
Microsoft Excel
Microsoft Excel 2007
• Lesson 1: What’s changed, and why
• Lesson 2: Get to work in Excel
What’s changed, and why
Yes, there’s a lot of
change in Excel 2007.
It’s most noticeable at
the top of the window.
But it’s good change.
The commands you need are now more clearly visible and more
readily available in one control center called the Ribbon.
What’s on the Ribbon?
The three parts of the
Ribbon are tabs, groups,
and commands.
1
Tabs: Tabs represent core tasks you do in Excel. There are
seven tabs across the top of the Excel window.
2
Groups: Groups are sets of related commands, displayed on
tabs.
3
Commands: A command is a button, a menu, or a box where
you enter information.
A new view
To see the new view,
click Page Layout View
on the View toolbar
.
Here’s what you’ll see in the worksheet:
1
Column headings.
2
Row headings.
3
Margin rulers.
Microsoft Excel
The Basics – Cell editing
A1
Introduction to Excel
In each cell there may be the following types of
data
• text (labels)
• number data (constants)
• formulas (mathematical equations that do all the
work)
Introduction to Excel
Introduction to Excel
Working with formula
Formulas ALWAYS begin with an = sign. This “tells” Excel that a
calculation will need to be performed.
Introduction to Excel
Working with formula
Maths
Symbol
Spreadsheet
Symbol
+
+
You would enter =3*4
-
-
And the spreadsheet
would
show “12”. (That’s the
answer!)
X
*
÷
/
The symbols for the
operations are not all the
same.
So to calculate 3x4
Introduction to Excel
Working with formula
Using Built-in Functions
• While editing a cell, choose
Insert→Function, or click
the function button
Introduction to Excel
Formatting cells
Fixed format
0.1  10%
0.13  1.3e-01
Useful for
large text
Introduction to Spreadsheet
What is a Spreadsheet?
A program that allows you to use data to forecast, manage,
predict, and present information.
Introduction to Spreadsheet
Spreadsheet uses
School: Student grades, payroll
Sports: individual and team statistics
Personal: checkbook, household expenses
Business: payroll, investments
Introduction to Spreadsheet
Spreadsheet uses
Fact: the spreadsheet program, and primarily
Microsoft Excel, is the most common computing
tool used by the practicing chemical engineer.
Introduction to Spreadsheet
Types of ChE calculations carried out using Excel
General, small-scale, day-to-day calculations

formula-based calculations

data manipulation, graphics & statistics

what-if scenarios and case studies
Flowsheet calculations

material & energy balances

vapor-liquid equilibrium

chemical equilibrium & reaction kinetics

detailed design of process equipment
Financial calculations

project economics

profit/cost optimization
Introduction to Spreadsheet
Problem-solving capabilities of Excel
 Evaluation of engineering formulas
 Data handling and graphics
 Solution of algebraic equations
 Solution of differential equations
 Optimization calculations
 Applied statistics
 Advanced techniques
 use of Visual Basic for Applications [VBA]
 use of add-in products
[Solver, . . .]
 communication with other programs
[HYSYS, LabView, . . .]
Introduction to Spreadsheet
Example Problem: Felder & Rousseau, 4.6-5
Dehydrogenation of Propane
95% overall conversion
of propane
C3 H 8  C3 H 6  H 2
Separator produces 2 streams:
Product:
H 2 , C3 H 6 ,
0.555% of C3H8 leaving reactor
Recycle:
balance of unreacted C3H8
5% of C3H6 in Product stream
Feed
Reactor
Recycle
Separator
Product