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Find the repeating elements and repetitions of a row vector.

So let's say that x is a vector, for example, x = [4, 4, 5, 5, 5, 6, 7, 7，8, 8, 8, 8] Now we want to get the following two ve...

2 years ago

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Vertical matrix sort

Given a matrix x with n rows and m columns, return a matrix y with 2n rows and m columns, such that every column in x is sorted ...

2 years ago

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Diagonal Pattern

For a positive integer |n|, return an |nXn| matrix |mat| such that the value of each element in row |i| and column |j| is given ...

2 years ago

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Counting Sequence

Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...

2 years ago

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Triangle of numbers

Create a matrix with the integers from 1 to |n| arranged in a triangular shape. Every row |i| of the matrix contains |i| inte...

2 years ago

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Back to basics 2 - Function Path

Covering some basic topics I haven't seen elsewhere on Cody. Given a string that is the name of a MATLAB function, return a s...

2 years ago

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Prime factor digits

Consider the following number system. Calculate the prime factorization for each number n, then represent the prime factors in a...

2 years ago

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Given a matrix A return a vector of the product of the elements in each column using a loop without using prod.

--------------------- for m: 3 1 3 3 10 1 9 1 9 4 1 4 5 6 5 ...

2 years ago

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Product of Each Column

Given a matrix |mat| with |n| columns, return a row vector |v| of length |n|, where every element in |v| is the product of the |...

2 years ago

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Replace Nonzero Numbers with 1

Given the matrix x, return the matrix y with non zero elements replaced with 1. Example: Input x = [ 1 2 0 0 0 ...

2 years ago

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Area of a pentagon

Given the side of a regular pentagon and its apothem return the area of pentagon. Remember the area of pentagon is calculate ...

2 years ago

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Find the area of the square

There are *n²* circles inscribed in the square ABCD. The perimeter of each circle is *aπ* <<http://imgfz.com/i/3wzCeAT.png>> ...

2 years ago

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Times 5

Try out this test problem first. Given the variable x as your input, multiply it by five and put the result in y. Examples...

2 years ago

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Times 10

Try out this test problem first. Given the variable x as your input, multiply it by ten and put the result in y. Examples:...

2 years ago

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Doubling elements in a vector (★★)

(copy of prob. 1024) Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] t...

2 years ago

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Mo money, mo math #2! (★★★)

(adapted from Prob 9 Cody team) You have a matrix for which each row is a person and the columns represent the number of quar...

2 years ago

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Sum of terms in a series 1 (★★★)

Given x and n, compute the following sum: |x|+|x|^(1/2)+|x|^(1/3)+|x|^(1/4)+|x|^(1/5) ... + |x|^(1/n) where ||x|| indica...

2 years ago

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Sum 1 to 100 even number

Write a Matlab program to add all the even numbers from 0 to 100 |

2 years ago

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Times 11

Try out this test problem first. Given the variable x as your input, multiply it by eleven and put the result in y. Exampl...

2 years ago

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Mo money, mo math 1! (★★★)

(adapted from Prob 9 Cody team) You have a vector where the elements represent the number of $20 bills, $10 bills, $5 bills, ...

2 years ago