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Find a real root of a quintic function without using roots function

3 months ago

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Logic x

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Logic 9

3 months ago

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Use a timetable to analyze a train timetable (Part 1)
Oh no, you missed your train to Boston! Find the departure time of the next available train by analyzing the train timetable. Th...

3 months ago

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Exponents in Factorials(hard)
This is problem is a harder version of "Problem 44747. Exponents in Factorials". <https://ww2.mathworks.cn/matlabcentral/cody/p...

3 months ago

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Scrabble Scores - 4
This problem is part of a set of problems that successively develop a more sophisticated Scrabble scoring routine. The point dis...

3 months ago

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Dilate a 3d object sampled on a regular grid
3d objects can be described by a set of points on a regular grid in Euclidean space. Given the n x 3 matrix m defining some numb...

3 months ago

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Easy Sequences 2: Trigonometric function with integral input and output
The function 'F', defined as: , will always return an integer if the input is a natural number (in radian...

3 months ago

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Connect Four - 01
Connect four is a two player board game. <https://en.wikipedia.org/wiki/Connect_Four> Given a complete connect-four board,...

3 months ago

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Simulating the selection of a state with given probabilities
Lets say we have 3 different states [1,2,3] with the probabilities of occurrences of each state is given as [0.5 0.2 0.3]. Which...

3 months ago

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Compute Hamming distances between each pair of rows from two input matrices
For two input matrices _u_ ( _n_ x _uCols_ ) and _v_ ( _n_ x _vCols_ ) of numbers in range [0..255] (8-bit), such that each colu...

3 months ago

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Sum the unitary divisors of a number
Cody Problems 1933 and 46898 deal with , the sum of divisors function. This problem deals with , the sum of unitary divisors fun...

3 months ago

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Full combinations
Given n input vectors x1, x2, …, xn, generate a p*n matrix y whose rows contain all element-wise combinations of the vectors x1,...

3 months ago

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rectangle in circle
In the figure below, the rectangle at the corner measures a cm x b cm. What is the radius of the circle in cm? <<http://www....

3 months ago

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Vigenere cipher - be like Sherlock Holmes!
You're a young detective. Every detective needs a function to decrypt a vigenère cipher. It's a modification of a caesar cipher....

3 months ago

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Recursive Standard Deviation
When you have a large set of data, it can be resource consuming to calculate standard deviation at every step. So why not calcul...

3 months ago

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all possible subsets of set
Given a vector, return all possible subsets of the vector in a cell array. Properties of basic set theory is assumed to be valid...

3 months ago

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Electric Potential Energy

3 months ago

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stem and leaf plot
A stem-and-leaf display is a device for presenting quantitative data in a graphical format, similar to a histogram, to assist i...

3 months ago

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Besson Ranks
Return Besson Ranks. You can look at <https://www.sciencedirect.com/science/article/pii/0895717789903671 this article.> Besso...

3 months ago

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Award medals to winners

3 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...

3 months ago

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Highest powers in factorials
This is the inverse of the problem <https://www.mathworks.com/matlabcentral/cody/problems/44747 Exponents in Factorials>. Inste...

3 months ago

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Grid traversal
Given a line defined by (x1,y1) & (x2,y2),return the number of squares that the line crosses on the grid (a square is 1x1). ...

3 months ago

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find the lowest number with given amount of integer factors

3 months ago

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Compute the date of a special marriage milestone

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Function minimization - beat fminbnd!
Matlab's fminbnd function finds a minimizer of a function within an interval. If often gets stuck in local minima. Can you do...

3 months ago

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Convert vector datasets to plot with imagesc instead of scatter
For large datasets this allows much faster plotting. An irregular 2D spatial sampling is provided in x and y vectors with a d...

3 months ago

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Zero
given an integer a, find the smallest possible integer b(b>0) such that their bitwise logical AND is zero. * if a=11(1011) t...

3 months ago

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Cricket - Peak Batting Average
Given a vector s of strings representing a batter's individual innings scores (in chronological order), return the highest batti...

3 months ago