By Timmy Siauw
Assuming no previous heritage in linear algebra or actual research, An creation to MATLAB® Programming and Numerical tools for Engineers lets you increase solid computational challenge fixing strategies by utilizing numerical tools and the MATLAB® programming setting. half One introduces primary programming ideas, utilizing basic examples to place new innovations fast into perform. half covers the basics of algorithms and numerical research at a degree permitting you to fast observe leads to sensible settings.
- Tips, warnings, and "try this" positive factors inside of each one bankruptcy support the reader enhance reliable programming practices
- Chapter summaries, keywords, and services and operators lists on the finish of every bankruptcy enable for fast entry to special information
- At least 3 sorts of finish of bankruptcy workouts - pondering, writing, and coding - allow you to check your realizing and perform what you have learned
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Extra info for An Introduction to MATLAB® Programming and Numerical Methods for Engineers
43 51 54 55 57 58 Motivation Programming often requires repeating a set of tasks over and over again. , mathematical operations) that computes an approximation for sin (x). Rather than having to retype or copy these instructions every time you want to use the sin function, it is useful to store this sequence of instruction as a function that you can call over and over again. Writing your own functions is the focus of this chapter, and it is the single most powerful use of computer programming.
Write a command that creates an empty 1 × 3 cell array. Use the cell function. Write a command that creates a 2 × 2 cell array where the upper left element contains the string dog, the upper right element contains the string cat, the lower left element contains the double 10, and the lower right element contains the array [23 5 4 93]. Write a command that assigns the value π/4 to the variable x. 29. Write a command that assigns a 1 × 100 array of zeros to the variable z. 30. Write a command that assigns the array A=[1 3 5 .
Use the rand function to generate a uniformly distributed array of 1000 numbers between 0 and 1. 5. Use the mean function to find the mean of the array created. 5. 10. Assign the string ‘123’ to the variable S. Use the function str2num to change S into a double. Assign the output of str2num to the variable N. Verify that S is a char and N is a double using the class function. 11. Assign the string 'HELLO' to the variable s1 and the string 'hello' to the variable s2. Use the strcmp function to compare s1 and s2 to show that they are not equal.