# Matlab With

• Matlab Tutorial
• If you have trouble installing MATLAB, go to the University of Arizona MATLAB Portal and click ‘Need Installation Help’ to get support. What is MATLAB and Simulink MATLAB, the language of technical computing, is a programming environment for algorithm development, data analysis, visualization, and numeric computation.
• Please note that Matlab uses radian units by default. To switch to degrees, just add the letter d at the end of the above functions: cosd, sind, tand. Exponentials and square root. Other main mathematical functions have a pretty standard notation on Matlab.

MATLAB ® combines a desktop environment tuned for iterative analysis and design processes with a programming language that expresses matrix and array mathematics directly. It includes the Live Editor for creating scripts that combine code, output, and formatted text in an executable notebook.

• MATLAB Useful Resources

In MATLAB environment, every variable is an array or matrix.

You can assign variables in a simple way. For example,

MATLAB will execute the above statement and return the following result −

It creates a 1-by-1 matrix named x and stores the value 3 in its element. Let us check another example,

MATLAB will execute the above statement and return the following result − Project report on online banking system in java pdf.

• Once a variable is entered into the system, you can refer to it later.

• Variables must have values before they are used.

• When an expression returns a result that is not assigned to any variable, the system assigns it to a variable named ans, which can be used later.

For example,

MATLAB will execute the above statement and return the following result −

You can use this variable ans

MATLAB will execute the above statement and return the following result −

Let's look at another example −

MATLAB will execute the above statement and return the following result −

## Multiple Assignments

You can have multiple assignments on the same line. For example,

MATLAB will execute the above statement and return the following result −

## I have forgotten the Variables!

The who command displays all the variable names you have used.

MATLAB will execute the above statement and return the following result − The whos command displays little more about the variables −

• Variables currently in memory
• Type of each variables
• Memory allocated to each variable
• Whether they are complex variables or not

MATLAB will execute the above statement and return the following result −

The clear command deletes all (or the specified) variable(s) from the memory.

## Long Assignments

Long assignments can be extended to another line by using an ellipses (..). For example,

MATLAB will execute the above statement and return the following result −

## The format Command

By default, MATLAB displays numbers with four decimal place values. This is known as short format.

However, if you want more precision, you need to use the format command.

The format long command displays 16 digits after decimal.

For example −

MATLAB will execute the above statement and return the following result−

Another example,

MATLAB will execute the above statement and return the following result −

The format bank command rounds numbers to two decimal places. For example,

MATLAB will execute the above statement and return the following result −

MATLAB displays large numbers using exponential notation.

The format short e command allows displaying in exponential form with four decimal places plus the exponent.

For example,

MATLAB will execute the above statement and return the following result −

The format long e command allows displaying in exponential form with four decimal places plus the exponent. For example,

MATLAB will execute the above statement and return the following result −

The format rat command gives the closest rational expression resulting from a calculation. For example,

MATLAB will execute the above statement and return the following result −

## Creating Vectors

A vector is a one-dimensional array of numbers. MATLAB allows creating two types of vectors −

• Row vectors
• Column vectors

Row vectors are created by enclosing the set of elements in square brackets, using space or comma to delimit the elements.

For example,

MATLAB will execute the above statement and return the following result −

Another example,

MATLAB will execute the above statement and return the following result −

Column vectors are created by enclosing the set of elements in square brackets, using semicolon(;) to delimit the elements.

MATLAB will execute the above statement and return the following result −

## Creating Matrices

A matrix is a two-dimensional array of numbers.

In MATLAB, a matrix is created by entering each row as a sequence of space or comma separated elements, and end of a row is demarcated by a semicolon. For example, let us create a 3-by-3 matrix as −

MATLAB will execute the above statement and return the following result −

Content on these pages is derived from participant presentations, discussions, and breakout groups at theTeaching Computation with MATLAB workshops.
Computation is the use of computers to perform calculations, model data, make predictions, and test hypotheses. Computational skills are necessary to employ quantitative methods in complex scientific contexts and with large data sets. With today's unprecedented data availability there are numerous new science and engineering opportunities if one has the necessary computational skills. Developing these skills requires students to be comfortable with languages and tools such as MATLAB that enable them to express and explore solutions to scientific problems.

In order to provide students with the computational skills they need to be successful, the teaching of computation must change to reflect the changing landscape of computation. Teaching Computation in the Sciences Using MATLAB provides resources to help educators incorporate computation into their classrooms and engage with a community of educators interested in improving the teaching of these important skills.

### Matlab With Raspberry Pi

Looking for opportunities to discuss teaching computation and programming with MATLAB? Participate in the annual Teaching Computation with MATLAB workshop. Join the email list to receive timely updates.

## Approaches to Teaching Computation with MATLAB

MATLAB is useful tool for teaching computation because it allows for robust data analysis, data visualization and exploration, modeling, and working with real data sets. If the use of MATLAB is scaffolded in a course or curriculum, it is a tool that can help students develop computational skills and build self-efficacy. When combined with collaborative learning techniques and effective assessments, MATLAB can be an effective and powerful tool for teaching computation.

### Matlab With Excel

Discover activities, essays, and course descriptions submitted by educators who teach with MATLAB. Use the search bar or explore the individual collections below.

### Activities Collection

MATLAB based activities, laboratory exercises, projects, and other assignments.

### Essays Collection

Educator perspectives on how teaching with MATLAB can enhance learning.

### Courses Collection

Course descriptions and syllabi for STEM courses on (or that integrate) MATLAB.

## Get Involved

In addition to hosting resources developed by educators for educators, Teaching Computation in the Sciences Using MATLAB is a growing community of faculty in STEM fields interesting in improving computation in teaching. Get involved by participating in events or joining the community discussion.

## Workshops and Webinars

Participate in professional development events aimed at improving the teaching of computation. Workshops and webinars provide spaces for experienced educators to share their ideas and opportunities for those just getting started to gain expertise.

## Join the Community

Join a community of educators interested in teaching computation with MATLAB. Whether you're just getting started or have been teaching with MATLAB for years, you can ask questions, share experience, and receive updates about upcoming events.