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Lah Numbers
Create a square lower diagonal matrix containing the first n Lah number coefficients. In mathematics, the Lah numbers are coeffi...

2 months ago

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Repeat Vector Values an Arbitrary Number of Times
Given two vectors of the same size, repeat the values of the first vector the number of times given in a second vector. For exam...

2 months ago

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4 Digit Sequence Repetitions
Given a 4 digit integer, a sequence can be created such that the next digit in the sequence is the ones digit from the sum of th...

2 months ago

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Leading-zero padding
Write a function that will add leading-zero padding to all numbers in the supplied vector, as necessary, based on the maximum nu...

2 months ago

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Red and green towers
Frankie has a large number of wooden cubes, painted in red and green. He is building little towers with his cubes, by stacking t...

2 months ago

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Frequency Analysis of Text
Frequency analysis is a common task in cryptoanalysis. It is essentially counting the occurrences of alphabets (regardless of ca...

2 months ago

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Mechanical Advantage of a Gear Train
Calculate the mechanical advantage of a gear train. The mechanical advantage of a gear couple is given by MA = T_o/T_i where ...

2 months ago

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Triangle Area Using Heron's Formula
Given the three side lengths a, b, and c of a triangle, calculate its area using Heron's formula and round to 4 decimal places. ...

2 months ago

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Create incremental spiral WITHOUT USING EVAL or FEVAL
Constructions that use feval or eval are used to cheat with cody. This test-suite tries to avoid that trick. The goal of this c...

2 months ago

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Best Square-Shaped Grid for Subplot
If you have x number of plots, find the optimum 'm' number of rows and 'n' number of columns for subplotting where the overall f...

2 months ago

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Find the biggest digit in a matrix
Write a function to find the biggest digit in a matrix; input -> a matrix output -> a digit For example; [12; 47;...

2 months ago

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Are all the three given point in the same line?
In this problem the input is the coordinate of the three points in a XY plane? P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) how can...

2 months ago

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Make blocks of color
Given a (Nx3) sequence of RGB colors, I want to create a (numRowBlocks x numColBlocks x 3) image comprising (blockSize x blockSi...

2 months ago

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compare strings
Given 2 strings and 3 actions (Insert,delete,replace) on characters. Find the difference between two strings. Example: str...

2 months ago

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Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

2 months ago

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Filter values in a vector
Cody often benefits from a functional style of programming. For example, your score is often better when you compose multiple fu...

2 months ago

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Set a Soroban Abacus
*Description* This problem is the inverse of <http://www.mathworks.com/matlabcentral/cody/problems/136-read-a-soroban-abacus ...

2 months ago

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Explode string
Break a sentence into cell of words

2 months ago

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The sum of individual numbers...
Well this one is taking a number and then summing the individual parts till you reach a value of 1, 2, 3, 4, 5, 6, 7, 8, 9, or 0...

2 months ago

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Slicing the cube
A bored matlab enthusiast has a cube with volume n^3. He decides to paint the entire surface of the cube red. Then, with slices...

2 months ago

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Poker Series 02: isQuads
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is to...

2 months ago

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Poker Series 08: IsPair
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

2 months ago

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Poker Series 06: isThreeKind
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

2 months ago

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Poker Series 03: isFullHouse
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

2 months ago

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Poker Series 09: IsHighCard
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

2 months ago

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Poker Series 04: isFlush
The Poker Series consists of many short, well defined functions that when combined will lead to complex behavior. Our goal is t...

2 months ago

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Assign matrix rows/columns to separate variables
This is a slight variant of <http://www.mathworks.com/matlabcentral/cody/problems/2668-assign-matrix-elements-to-separate-variab...

2 months ago

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Number of Even Elements in Fibonacci Sequence
Find how many even Fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

2 months ago

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The glass half full
Identical glasses are placed in a triangular tower structure, such that the top level (L = 1) comprises one glass, the next leve...

2 months ago

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Energy of a photon
&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883 Given the frequency F of a photon in giga hertz. Find energy E of this photon...

2 months ago