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Can I convert a complex value vector into corresponding string?
str = num2str(u) https://uk.mathworks.com/help/matlab/ref/num2str.html

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How do I name this variable dynamically?
In your example above, the variable "batch" is a string. You cant reference object properties or methods, or structure fields fr...

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Help me with this loop. contains handles structure
If you want to do it like this, you can access structure fields using strings by enclosing the string referring to the fieldname...

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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...

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Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

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Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

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Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

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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...

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Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

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Reshaphing 3D Matrix into 2D Matrix
Yes reshape will work sz = size(A); B = reshape(A,sz(1),[],1); % or B = reshape(A,sz(1),sz(2)*sz(3)); Henry

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Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

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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...

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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...

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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...

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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...

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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...

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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 ...

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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]; and ...

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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 ...

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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:...

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

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How to display the coordinate system of the figure (UCS icon)?
Hi yu, Yes I have done it a few times. You should be aware that this will work for me because the scale on each axis is equal. F...

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Rotating 3-D Histogram
How about: view(gca,[0 90]) % or ax = gca; ax.View = [0 90]; Henry

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import csv file to specific sheet in excel
Hi, xlswrite attempts to write each element of your array to a single cell in the worksheet. Your arrays (J and K) are cell a...

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How to control multiple pushbutton with keyboard using GUIDE?
Is it be possible that the focus is no longer on the figure and is instead on the pushbutton associated to the previous key? ...

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How to change the way data is scaled to custom colormap in a scatter plot.
Hi, One solution is to set the CLim values for the axis to be equal positive and negative values. The white section of your c...

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The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

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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...

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