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Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

2 months ago

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Fibonacci sequence

Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

2 months ago

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Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

2 months ago

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Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

2 months ago

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Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

2 months ago

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Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

2 months ago

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Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

2 months ago

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Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; ...

2 months ago

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Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

2 months ago

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Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

2 months ago

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Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

2 months ago

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Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

2 months ago

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Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

2 months ago

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Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

2 months ago

Answered

Is there a catalog of pre-made problems available within MATLAB Grader?

In addition to the example problems (in a collection called Getting Starting with MATLAB Grader), the Introduction to Programmin...

Is there a catalog of pre-made problems available within MATLAB Grader?

In addition to the example problems (in a collection called Getting Starting with MATLAB Grader), the Introduction to Programmin...

3 months ago | 0

Answered

Cleaning of large files of data

Consider looking through this example in MATLAB. It might give you some ideas of how to handle the missing data.

Cleaning of large files of data

Consider looking through this example in MATLAB. It might give you some ideas of how to handle the missing data.

3 months ago | 1

Answered

Grader: Your code could not run to completion. Check for errors in the code such as infinite recursion.

There is not currently a way to extend the time limit. All computation, including running the reference solution, student soluti...

Grader: Your code could not run to completion. Check for errors in the code such as infinite recursion.

There is not currently a way to extend the time limit. All computation, including running the reference solution, student soluti...

4 months ago | 1

Answered

Graphical User Interface (GUI) in Matlab 2019a version.

In the command window, type appdesigner

Graphical User Interface (GUI) in Matlab 2019a version.

In the command window, type appdesigner

4 months ago | 0

Answered

How can I exclude index values that are not present in all columns of a matrix?

Where your data is sorted in ascending order and, at least after a cursory examination of the data, no values are duplicated in ...

How can I exclude index values that are not present in all columns of a matrix?

Where your data is sorted in ascending order and, at least after a cursory examination of the data, no values are duplicated in ...

4 months ago | 0

Answered

Problem with contourf for scattered data

I didn't look into what is causing it, but inspecting Z has me thinking it might be roundoff error. Your Z values in this region...

Problem with contourf for scattered data

I didn't look into what is causing it, but inspecting Z has me thinking it might be roundoff error. Your Z values in this region...

4 months ago | 0

| accepted

Answered

Too long for installation

You can try the installation self help. If you still can't find a solution, create a technical support service request here.

Too long for installation

You can try the installation self help. If you still can't find a solution, create a technical support service request here.

4 months ago | 0

Answered

help with matlab error

It looks like your teacher is using MATLAB Grader for this problem. Because of variable scope in a function, MATLAB Grader is ca...

help with matlab error

It looks like your teacher is using MATLAB Grader for this problem. Because of variable scope in a function, MATLAB Grader is ca...

4 months ago | 0

Answered

What Matlab products should I buy as a student?

I think the link you want to look at is this: https://www.mathworks.com/store If you need help selecting the products you need...

What Matlab products should I buy as a student?

I think the link you want to look at is this: https://www.mathworks.com/store If you need help selecting the products you need...

4 months ago | 1

| accepted

Answered

Is there a way of creating a code so every time you save a figure as .mat it automatically also saves it as .bmp?

There is code you can add to your script/function so that once a figure has been created, it will save it. This is done with t...

Is there a way of creating a code so every time you save a figure as .mat it automatically also saves it as .bmp?

There is code you can add to your script/function so that once a figure has been created, it will save it. This is done with t...

5 months ago | 0

Answered

too many input argument while plotting date and time

Not sure exactly what your desired outcome is. However, why not use readtable, which loads your data into a table? It can handle...

too many input argument while plotting date and time

Not sure exactly what your desired outcome is. However, why not use readtable, which loads your data into a table? It can handle...

5 months ago | 0

Answered

cut function and plot

plot(f(10:20)) If you would like to understand more, I highly recommend going through MATLAB Onramp. Chapter 5 address how to s...

cut function and plot

plot(f(10:20)) If you would like to understand more, I highly recommend going through MATLAB Onramp. Chapter 5 address how to s...

5 months ago | 0

Answered

Sorting by multiple columns in a table with natural number sorting

Here's a simple example that works for me: pairNum = randi(15,1,200)'; trialNum = randi(15,1,200)'; data=table(pairNum, trial...

Sorting by multiple columns in a table with natural number sorting

Here's a simple example that works for me: pairNum = randi(15,1,200)'; trialNum = randi(15,1,200)'; data=table(pairNum, trial...

5 months ago | 0

| accepted

Answered

Editing a Colormap in MATLAB

My suggestion would be to create an image, set it as you want, save the colormap and color axis limits to a mat file. cmap = c...

Editing a Colormap in MATLAB

My suggestion would be to create an image, set it as you want, save the colormap and color axis limits to a mat file. cmap = c...

5 months ago | 0

| accepted