Presented To You By
Dr. Sovan Saha, Associate Professor
Computer Science & Engineering Department (AI & ML)
Institute of Engineering & Management, Kolkata
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Subject Name: IT Workshop (Numerical using Sci Lab/Python)
Subject Code: PCC CS302/PCC CS392
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Contents of Unit-1
❑What is Scilab?
❑Installation of the software Scilab
❑Basic syntax
❑Predefined constants
❑Mathematical Operators
❑Complex numbers
❑Built in functions
❑Polynomials
❑Vectors
❑Matrix
❑Handling these data structures using built in functions
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Contents of Unit-2
❑Programming
❑Functions
❑Loops
❑Conditional statements
❑Handling .sci files
❑Graphics handling 2D, 3D
❑Generating .jpg files
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Contents of Unit-3
❑Introduction of numerical methods using Scilab
❑Root Findings
❑Solving of System of linear equations
❑Interpolation
❑Integration
❑Ordinary Differential Equations.
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So, let’s start with Unit-1 and Unit-2!!!
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What is Scilab?
❑ Scilab is a free and open-source, cross-platform numerical computational package and a high-level,
numerically oriented programming language.
❑ It is similar to Matlab, which is a commercial product. Yet it is almost as powerful as Matlab.
❑ Scilab consists of three main components:
✓ an interpreter,
✓ libraries of functions (Scilab procedures),
✓ libraries of Fortran and C routines.
❑ Scilab is specialized in handling matrices (basic matrix manipulation, concatenation, transpose, inverse,
etc.) and numerical computations.
❑ Also it has an open programming environment that allows users to create their own functions and
libraries.
❑ It can be used for signal processing, statistical analysis, image enhancement, fluid dynamics simulations,
numerical optimization.
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Installation of the software Scilab
Step 1. Download Scilab
Go to Scilab website, under the
Download section and choose your
installation package. For windows
operating systems the are two versions:
32 and 64-bit. Download the one
matching your operating system.
The size of the installation kit is well
above 100 MB so the download time
will depend in your internet connection
speed.
When the download is complete you’ll
have on your disk drive an *.exe file
(e.g. scilab-5.4.0.exe/scilab-6.1.1.exe)
https://www.scilab.org/
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Installation of the software Scilab
Step 2: Run *.exe file
Execute the downloaded *.exe file. Make sure that
you have administrator rights on your operating
system.
Click on the “Run” button.
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Installation of the software Scilab
Step 3: Select the language to be used during the
installation process
Use the drop down list to select the desired
language.
After the language selection, click on the “OK”
button.
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Installation of the software Scilab
Step 4: Launch the Scilab Setup Wizard
It is recommended that you close all other
applications before starting the installation wizard.
Click “Next” button.
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Installation of the software Scilab
Step 5: Read the License Agreement
After you read the License Agreement and if you
agree to the terms, select “I accept the agreement”
and click on the “Next” button.
If you press the “Back” button you’ll go to the
previous installation step. Clicking on the “Cancel”
button will abort the installation process.
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Installation of the software Scilab
Step 6: Select the installation folder from you
local hard drive
First make sure that you have enough free disk
space for Scilab installation. On the bottom of the
screen there is a message informing you the
minimum free space required for the software.
Choose in which folder on your computer Scilab
will be installed. You can leave the default folder
path.
Click “Next” button.
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Installation of the software Scilab
Step 7: Select the type of installation
You can choose what software modules you want
to install with Scilab. From the drop-down menu
you can choose the type of installation. “Full
installation” will install the complete/full package
of components/modules.
Be aware that the “Full installation” type will
require around 500 MB of free disk space.
You can see some details about the installed
modules/components by clicking on the “About
modules …” button.
After your selection, click “Next” button.
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Installation of the software Scilab
Step 8: Select Start Menu Folder
You can choose the Start Menu folder for the
installation. If you want a different location than
the default one, click the “Browse…” button.
After you made your choice, click the “Next”
button.
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Installation of the software Scilab
Step 9: Select Additional Tasks
If you want to create a Desktop icon make sure to
check the box for “Create a desktop icon”.
Check all three boxes for file association This way
you’ll associate *.sce, *.sci, *.tst, *.xcos, *.cos and
*.cosf files with Scilab.
Click “Next” button to continue.
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Installation of the software Scilab
Step 10: Review all installation settings
Before the installation starts you’ll see a summary
window with the installation settings. If something
is not as expected use the “Back” button to get to
the desired menu to perform changes.
If all the settings are as expected, click the “Install”
button.
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Installation of the software Scilab
Step 11: Wait for the installation to complete
Depending on the performance of you computer
(CPU, RAM, HDD) the installation time will vary.
If you want to abort the installation click the
“Cancel” button. Otherwise wait until the progress
bar fills up.
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Installation of the software Scilab
Step 12: Setup Finished
At this point the installation is finished, Scilab is
installed on your computer.
If you check the box for “Launch Scilab”, when
you click the “Finish” button, Scilab will be
launched.
Click the “Finish” button to exit the Setup Wizard.
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Installation of the software Scilab
Step 13: Launch Scilab
When you launch Scilab you’ll get the start
screen as in the image. Try to perform some
basic mathematical operations to make sure
that the installation was successful.
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Basic Syntax!!!
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Variables
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Variable Names
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Mathematical Operators
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Comments and continuation lines
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Basic Examples
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Basic Examples
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Basic Examples
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Basic Examples
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Predefined Constants
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Examples: Predefined Constants
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Basic Boolean Variables
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Examples
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Examples
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Examples
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XNOR gate

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Dynamic Variables
String Variables
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Examples
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Examples: User Input
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Examples: Casting
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Integer Data type
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Examples: Integer Data type
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Examples: Integer Data type
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Examples: IF-ELSE
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Examples: IF-ELSE
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Examples: IF-ELSE
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