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Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

10 years ago

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Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

10 years ago

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Counting Money
Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

10 years ago

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Receive and send values in GUI
in your gui you need an edit text box (or equivalent, depending on which input values you require, it is not clear from your que...

10 years ago | 1

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special kind of interpolation
I have some data shown in the example figure below for which I want to perform an interpolation to calculate the average value. ...

10 years ago | 2 answers | 0

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Converting values to 0 and 1 and then counting occurrences!
is this what you mean as it is not clear to what end you would like to do this x(x<20) = 0; x(x>=20) = 1; temp ...

10 years ago | 0

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Create a vector with known indices and assign to that values from known vectors
maybe you can try something like this to keep it vectorized, if in reality your vector only has five elements, than you could al...

10 years ago | 1

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How can I add number after char and define as a variable
you could use the eval function for this but it is not recommended to do this (search the Internet for why) You could use som...

10 years ago | 1

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Help with switches in GUI
I think you are confused on how to add values to the guidata as now you are overwriting the values of OnOff by the pause values....

10 years ago | 0

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Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

10 years ago

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Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

10 years ago

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Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

10 years ago

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

10 years ago

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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

10 years ago

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save large image/figure
I always use the export_fig figure for saving images since this doesn't crop the figure so you might want to look at this? ht...

10 years ago | 0

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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...

10 years ago

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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...

10 years ago

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How to support default parameter in MATLAB FUNCTION ?
in your function you need to check how many parameters have been passed function myFunction(variable1,variable2, optionalVa...

10 years ago | 1

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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 + ...

10 years ago

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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...

10 years ago

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how can I merge matrices
[D(h), E(h)] = find(F(h)==B);

10 years ago | 0

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Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

10 years ago

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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...

10 years 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...

10 years ago

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

10 years ago

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Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

10 years ago

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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...

10 years 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...

10 years 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...

10 years 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...

10 years ago