By Peter I Kattan
This ebook is written for newbies and scholars who desire to study MATLAB. one of many ambitions of scripting this publication is to introduce MATLAB to scholars in excessive colleges. the fabric offered is really easy and straightforward to appreciate -- written in a gradual demeanour. the themes lined within the e-book comprise mathematics operations, variables, mathematical features, complicated numbers, vectors, matrices, programming, graphs, fixing equations, and an advent to calculus. additionally, the MATLAB Symbolic Math Toolbox is emphasised during this publication. There also are over 230 workouts on the ends of chapters for college students to perform. distinct suggestions to the entire routines are supplied within the moment half the publication. the writer has been utilizing MATLAB for the earlier fifteen years and is the writer of the simplest promoting publication "MATLAB consultant to Finite Elements". This description applies to the Revised version.
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Additional info for MATLAB for Beginners: A Gentle Approach - Revised Edition
A matrix is a collection of numbers and/or scalars arranged in rows and columns. For example here is a matrix of numbers with three rows and four columns: >> x = [2 1 -3 0 ; -2 3 4 1 ; 5 -2 1 3] x = 2 -2 5 1 3 -2 -3 4 1 0 1 3 In the above example, the matrix x is rectangular because the number of columns and the number of rows are not equal. In the specification of the matrix in MATLAB, the elements of the same row are separated by spaces while the rows themselves are separated by semicolons. Brackets are used to indicate the beginning and end of a matrix.
Here is an example: >> a = [1 5 3 5 6] >> a = [1 5 3 5 6] a = 1 5 3 5 6 >> b = [-2 3 5 7] b = -2 3 5 7 >> a+b ??? Error using ==> plus Matrix dimensions must agree. >> a-b ??? Error using ==> minus Matrix dimensions must agree. The operation of multiplication is a little more complicated for vectors. Even if you try to multiply two vectors of the same length, you will get an error message. Here is an example using the vectors x and y of the same length defined above: >> x*y ??? Error using ==> mtimes Inner matrix dimensions must agree.
Compute the square root of 10. Compute the factorial of 7. Compute the cosine of the angle 45 where 45 is in radians. Compute the cosine of the angle 45 where 45 is in degrees. Compute the sine of the angle of 45 where 45 is in degrees. 6. Compute the tangent of the angle 45 where 45 is in degrees. 7. 5. 8. Compute the tangent of the angle . Do you get an error? Why? 9. 10. 11. 12. 13. 14. 15. 16. 17. Compute the value of exponential function e3 . 5 . 5 . 43. Use the MATLAB remainder function rem to obtain the remainder when dividing 5 by 4.