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# waqas

Last seen: 3 månader ago Active since 2018

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Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

Question

How to make a rectangular shape with inner boundary having the value of 1 and outer boundary a value of 0?
Hi, I am trying to make a rectangular shape with inner boundary value set as one and outer boundary value set as zero. Ideally...

8 månader ago | 1 answer | 0

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Question

How to generate Q4 element mesh in selected area?
Hi, I have a region ( variable 'nmask' in the .MAT file) on which I want to generate a Q4 mesh. In my current implementation, ...

12 månader ago | 1 answer | 0

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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...

mer än ett år 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...

mer än ett år 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....

mer än ett år ago

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...

mer än ett år 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,...

mer än ett år 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...

mer än ett år 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 = ...

mer än ett år 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]; ...

mer än ett år 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]

mer än ett år 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...

mer än ett år 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...

mer än ett år 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...

mer än ett år 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...

mer än ett år 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...

mer än ett år 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...

mer än ett år ago

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

mer än ett år 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 ...

mer än ett år 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.

mer än ett år ago

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

mer än ett år ago

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...

mer än ett år 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...

mer än ett år ago | 1 answer | 0

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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 ...

nästan 2 år ago | 1 answer | 0

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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...

nästan 2 år ago | 1 answer | 0

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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 ...

ungefär 2 år ago | 1 answer | 0

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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 ...

ungefär 2 år ago | 1 answer | 0