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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...

4 years ago

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Function Iterator

Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

4 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...

4 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...

4 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...

4 years ago

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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 + ...

4 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...

4 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...

4 years ago

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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 ...

4 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...

4 years ago

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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...

4 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...

4 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 ...

4 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...

4 years ago

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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...

4 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...

4 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...

4 years 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]; and ...

4 years 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...

4 years 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...

4 years ago

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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...

4 years 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 ...

4 years 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...

4 years ago

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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:...

4 years ago

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Using loop for calculating ode with different parameter

Use a for loop. If k is non-linear, just put your values of interest into a vector. loop_i = 0; for k = [1 10 ....Rest of ...

Using loop for calculating ode with different parameter

Use a for loop. If k is non-linear, just put your values of interest into a vector. loop_i = 0; for k = [1 10 ....Rest of ...

4 years ago | 0

Answered

how to search a value of a matrix and replace by vector value?

studentIDs = [84599 84607; ... 151791 152219; ... 151791 152195; ... 357518 357809; ... 357518 357863];...

how to search a value of a matrix and replace by vector value?

studentIDs = [84599 84607; ... 151791 152219; ... 151791 152195; ... 357518 357809; ... 357518 357863];...

4 years ago | 1

| accepted

Answered

Why does MATLAB (R2015b glnxa64 ) hangs at times ?

I see you are running Linux. Do you have a swap partition? If so, this could be the cause. With RAM intensive calculations, MATL...

Why does MATLAB (R2015b glnxa64 ) hangs at times ?

I see you are running Linux. Do you have a swap partition? If so, this could be the cause. With RAM intensive calculations, MATL...

4 years ago | 0

Answered

How do I add cell (or double) columns together to form a new cell or vector?

Is this what you're looking for? sum(A,2)

How do I add cell (or double) columns together to form a new cell or vector?

Is this what you're looking for? sum(A,2)

4 years ago | 0

Answered

I have a text file contains a diffrent directories of video data, but now I don't know how to read those directories line by line from this text file and pass it to a function of reading video, I wish you guys can help me

It sounds like your question is less about video files and more about how to read a text file containing a list of filepaths to ...

I have a text file contains a diffrent directories of video data, but now I don't know how to read those directories line by line from this text file and pass it to a function of reading video, I wish you guys can help me

It sounds like your question is less about video files and more about how to read a text file containing a list of filepaths to ...

4 years ago | 0

| accepted