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# Katie

##### Last seen: 2 months ago
33 total contributions since 2019

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How to make rectangular mesh from Points cloud
You can use a combination of meshgrid and griddata to do this. In the code below, I'm assuming that x is a column vector with th...

1 year ago | 1

Creating a loop for a matrix function
How you would write this code depends on how you want to do the function on the matrix rows: Option 1: rows 1&2, then rows 3&4,...

1 year ago | 0

plotting 2 .mat fikes ith the same variable name
When you load the .mat files you can store the contents in two different variables and then dot index your variables: Data=load...

1 year ago | 0

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how to write in edit field
Hi! What you're showing in your question is the callback function for the CamperaIP edit field. This function is called whenever...

1 year ago | 1

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Saving matlab result in different directory
Hi! You can do this by using the full file path in your file name. For example: filename=strcat('C:\Users\katie\Documents\MATLA...

1 year ago | 1

| accepted

Question

Terrain from IMG, JP2, or Tiff File
Hi, I need to plot high resolution lunar terrain mostly as contour plots and using meshm from the mapping toolbox. I have access...

1 year ago | 2 answers | 0

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Inner matrix dimensions must agree
You're missing a dot in front of the * in front of the sin x_time = A.*exp(-zeta.*wn.*t).*sin((wd.*t)+phi);

1 year ago | 1

Solved

Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

1 year ago

Solved

Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

1 year ago

Solved

Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

1 year ago

Solved

Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

1 year ago

Solved

Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

1 year ago

Solved

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...

1 year ago

Solved

Get the length of a given vector
Given a vector x, the output y should equal the length of x.

1 year ago

Solved

Return area of square
Side of square=input=a Area=output=b

1 year ago

Solved

Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

1 year ago

Solved

Replace NaNs with the number that appears to its left in the row.
Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

1 year ago

Solved

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...

1 year 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...

1 year ago

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Create a vector
Create a vector from 0 to n by intervals of 2.

1 year 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]; ...

1 year 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.

1 year ago

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Given a and b, return the sum a+b in c.

1 year ago

Solved

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 ...

1 year ago

Solved

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...

1 year ago

Solved

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:...

1 year ago

I can not find an error in the expression
Hi! It looks like you're really close! You're just missing a couple dots in front of some of your multiplication and division op...

1 year ago | 1

| accepted

I need to plot a graph having a linear value in y and another having a quadratic value in y
Hi! It looks you have a couple small assignment errors that are preventing your code from working how you want to. Based on your...

1 year ago | 0

How do I fix my meshgrid?
Hi! Thanks for providing extra details! Below are the steps I used with explanations for each. I also labeled them in accordance...

1 year ago | 1

| accepted