Dear Rushan,

As you know scilab is an open available and the tutorial section in scilab website is well explained and covers most of the basics.

Besides on material there is no book available for free but you can definitely find number of materials on google for free. ....

https://www.google.com/search?q=scilab+programming+tutorial+pdf&sa=X&ved=2ahUKEwii5JjuyoDhAhVLXSsKHaTxDa0Q1QIoBnoECA0QBw&biw=360&bih=559

https://www.scilab.org/about/community/books

https://www.scilab.org/tutorials

Scilab Textbook Companion for Higher Engineering Mathematics

by B. S. Grewal.

Created by Karan Arora and Kush Garg B.Tech. (pursuing) Civil Engineering Indian Institute of Technology Roorkee College Teacher Self Cross-Checked by Santosh Kumar, IIT Bombay May 19, 2016

Contents List of Scilab Codes

1 Solution of equation and curve fitting

2 Determinants and Matrices

4 Differentiation and Applications

5 Partial Differentiation And Its Applications

6 Integration and its Applications

9 Infinite Series

10 Fourier Series

13 Linear Differential Equations

21 Laplace Transform

22 Integral Transform

23 Statistical Methods

24 Numerical Methods

26 Difference Equations and Z Transform

27 Numerical Solution of Ordinary Differential Equations

28 Numerical Solution of Partial Differential Equations

34 Probability and Distributions

35 Sampling and Inference

Dear Rushan,

I have attached two books; book 1 is an Introduction to Scilab from a Matlab User’s Point of View (Eike Rietsch, 2010).

Book 2 discuss the Modeling and Simulation in Scilab/Scicos (Stephen L. Campbell, Jean-Philippe Chancelier and Ramine Nikoukhah, 2006).