Question

Removing values from surf?

I am plotting surf plot from the data (.mat file attached), but, there is data where Z values are zero which is ruining the plot...

3 months ago | 1 answer | 0

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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...

3 months ago

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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....

3 months ago

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How to find what percentage of image an object covers

im = im2bw(imread('image.jpeg')); imshow(bw) whitearea = bwarea(bw); blackarea = bwarea(~bw); conversion to black and white...

How to find what percentage of image an object covers

im = im2bw(imread('image.jpeg')); imshow(bw) whitearea = bwarea(bw); blackarea = bwarea(~bw); conversion to black and white...

3 months ago | 0

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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,...

3 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...

3 months ago

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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 = ...

3 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]; ...

3 months ago

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Reverse the vector

Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

3 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...

3 months ago

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Length of the hypotenuse

Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<https://i.imgu...

3 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...

3 months ago

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Generate a vector like 1,2,2,3,3,3,4,4,4,4

Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

3 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...

3 months ago

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Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

3 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 ...

3 months ago

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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.

3 months ago

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How to record/run the result 100 times?

May be knowing what OMEGA is would help us understanding what the code is doing. From current code, you can implement a second...

How to record/run the result 100 times?

May be knowing what OMEGA is would help us understanding what the code is doing. From current code, you can implement a second...

3 months ago | 0

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Question

Finding crack path using image processing

I have previously asked a question of this forum (link to it) where I want to find the path of a crack using image processing. H...

3 months ago | 1 answer | 0

Question

Interpolating data to find the values at NaN locations in the region.

I have a field which, when I plot, results in NaN values in between the known values. I want to interpolate the values on these ...

6 months ago | 1 answer | 0

Question

Finding the particular path using image processing

Hi, I need to find the path from the attached displacement field attached as .MAT file. My code was working on other data set...

9 months ago | 1 answer | 0

Question

Indexing in fields of a struct

Hi, in the attached .MAT file, I have a struct partitionsInfo in which I want to read partitionsInfo.frames using indexing to ...

9 months ago | 1 answer | 0

Question

Shifting XY- coordinate system (normally known as left-hand coordinate system) from top left to conventional (right handed) coordinate system?

Hi, I want to transform my matrix origin from top left corner (showed in Red color in the plot) to bottom left corner (showed ...

9 months ago | 1 answer | 0

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Extract vector from math file

You can define the variable which you want to extract: load('ABCdepobv.mat','B'); More details on saving and loading .MAT fil...

Extract vector from math file

You can define the variable which you want to extract: load('ABCdepobv.mat','B'); More details on saving and loading .MAT fil...

10 months ago | 0

Answered

How can I export this as a vector image?

Use export_fig function. Check the link here. I would suggest the add set(gcf,'color','w') before using export_fig functio...

How can I export this as a vector image?

Use export_fig function. Check the link here. I would suggest the add set(gcf,'color','w') before using export_fig functio...

10 months ago | 0

Answered

Issues Creating Multiple Figures in Same Script

Wouldn't the following make more sense? position_1 = a1_sol.a0 + 0*t + a1_sol.a2*t^2 + a1_sol.a3*t^3 position_2 = a2_sol.a0 + ...

Issues Creating Multiple Figures in Same Script

Wouldn't the following make more sense? position_1 = a1_sol.a0 + 0*t + a1_sol.a2*t^2 + a1_sol.a3*t^3 position_2 = a2_sol.a0 + ...

10 months ago | 0

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Solved

Dimensions of a rectangle

The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

10 months ago

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Change the sign of even index entries of the reversed vector

change the signs of the even index entries of the reversed vector example 1 vec = [4 -1 -2 9] ans = [9 2 -1 -4] example2...

10 months ago