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Happy Free Wednesday!
Just submit a solution on any Wednesday. *Related Challenges:* # Happy Free Wednesday! # <https://www.mathworks.com/matl...

8 years ago

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Under the sea: Snell's law & total internal reflection
<https://en.wikipedia.org/wiki/Snell's_law> When a light travels from one medium to another medium, depending on the refracti...

8 years ago

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The great 82-year-old
Let's answer the question below; 'I am *x* years old and I have never written programs. If I study from now, will I be able ...

8 years ago

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Find the starting index of a consecutive condition
Given a logical vector |v|, and a positive integer |n|, return the smallest index |i| that satisfies: all( v(i : i+n-1) ) =...

8 years ago

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Please check if calorie intake is less than 300 kcal.
I like eating some puddings and some chocolate cookies around 3 o'clock. However, I care about calorie intake. Please check whe...

8 years ago

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It's Happy! It's Fun! It's Happy Fun Hyperball!
Yes, it's Happy Fun Hyperball! The CODY sensation that's sweeping MATLAB nation! All you need to do to get your free Happy Fun H...

8 years ago

Problem

It's Happy! It's Fun! It's Happy Fun Hyperball!
Yes, it's Happy Fun Hyperball! The CODY sensation that's sweeping MATLAB nation! All you need to do to get your free Happy Fun H...

8 years ago | 0 | 4 solvers

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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 |...

8 years ago

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Add a vector to a matrix
Given a matrix |mat| of size |mXn| and a row vector |v| of size |1Xs|, return a matrix with |m+1| rows that conatains |mat| over...

8 years ago

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Remove the air bubbles from a vector
_*A reduced version of Problem 112*_ Given a column vector v, return a vector w in which all the zeros have "bubbled" to the ...

8 years ago

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Some Assembly Required
The input to this function is a matrix of real numbers. Your job is to assemble the rows of the matrix into one large row that ...

8 years ago

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How many Integers?
Count the integers in a given vector |v|. You *must* use a loop to count each element separately. Examples: Input: v...

8 years ago

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Math with Roman Numerals
Given a function R within (+,-,*,/) and two Roman numerals a & b, compute aRb in Roman numerals.

8 years ago

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Tax Calculator
Calculate the tax for a given income. 10% tax is paid for any income up to $2,000. 20% tax is paid for additional income u...

8 years ago

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Project Euler: Problem 14 Longest Collatz sequence
The following iterative sequence is defined for the set of positive integers: n → n/2 (n is even) n → 3n + 1 (n is odd) U...

8 years ago

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Parse me a Lisp
*Description* In Lisp and its variants, function calls are done using parenthesis where the first item in the parenthesis is ...

8 years ago

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Remove the first, third and fifth rows of a matrix
Given a matrix x with at least five rows, return a matrix y that includes all rows of x except for th 1st, the 3rd and 5th. E...

8 years ago

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Find the largest number
Given a vector v with 4 elements, find the largest number x. Example: Input: v = [4 7 1 6]; Output: x = 7; You mu...

8 years ago

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Calculate the answer to life the universe and everything
<https://en.wikipedia.org/wiki/42_(number)>

8 years ago

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Sum of adjacent elements in a vector
Given a vector v, return a vector s containting the sum of every two adjacent elements in the vector. Every element s(i) cont...

8 years ago

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Sum of Two Numbers
Given two integer numbers x and y, calculate their sum and put it in z. Examples: Inputs x = 2, y = 4 Output z is 6 ...

8 years ago

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Wayfinding 2 - traversing
This is the second part of a series of assignments about wayfinding. The final goal is to be able to calculate the fastest route...

8 years ago

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Wayfinding 1 - crossing
This is the first part of a series of assignments about wayfinding. The final goal is to be able to calculate the fastest route ...

8 years ago

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Cut an orange
Inspired by problem <http://www.mathworks.co.uk/matlabcentral/cody/problems/2175 2175>. A hungry matlab enthusiast has an ora...

8 years ago

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Packing oranges - one layer
Help the seller to pack oranges efficiently. How many oranges can be put into a box in one layer without squeezing them? Give...

8 years ago

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Pattern Recognition 3 - Variable Unit and Array Length (including cell arrays)
You will be given various arrays, composed of numbers or strings, including cell arrays of strings. For this problem, the patter...

8 years ago

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Pattern Recognition 2 - Known Unit Length, Various Array Length (including cell arrays)
You will be given various arrays, composed of numbers or strings, including cell arrays of strings. For this problem, the known ...

8 years ago

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Largest Geometric Series
Extension of Ned Gulley's wonderful <http://www.mathworks.com/matlabcentral/cody/problems/317 Problem 317>. In a geometric se...

8 years ago

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Find similar sequences
Another problem inspired by a question on the <http://www.mathworks.com/matlabcentral/answers answers> forum. Given a matrix ...

8 years ago

Solved

geometric progression
I've modified my <http://uk.mathworks.com/matlabcentral/cody/problems/2800-arithmetic-progression previous program> so that it n...

8 years ago