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Replace odd number in given matrix by zero
Replace the odd numbers in a given matrix with zero. Example A = [ 17 24 1 8 15 23 5 7 ...

12 years ago

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Must be in the front row...
You are given a matrix followed by a single number. Your object is to write a script that will shift the matrix around so that ...

12 years ago

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GJam 2013 Veterans: Hedge
This Challenge is derived from <http://code.google.com/codejam/contest/2334486/dashboard Hedgemony>. This is the Large data set ...

12 years ago

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Negation and new variables
Inspired by Problem 1827 by Andrew Newell. Write a function that has the following property: (x~=y) neg3(x)=x; neg3...

12 years ago

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Usage of java.math : Add, Multiply, Pow
This challenge is an introduction to the wonderful word of java.math that allows unlimited precision calculations. The primary ...

12 years ago

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Pig Latin to English Translator
Pig latin is a faux-language based off of English. The rules are as follows (excerpted from the <http://en.wikipedia.org/wiki/Pi...

12 years ago

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Wind Chill Computation
On a windy day, a temperature of 15 degrees may feel colder, perhaps 7 degrees. The formula below calculates the "wind chill," i...

12 years ago

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Solving Quadratic Equations (Version 1)
Quadratic equations have the form: ax^2 + bx + c = 0. Example: x^2 + 3x + 2 = 0, where a = 1, b = 3, and c = 2. The equation has...

12 years ago

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I want eval
A valid MATLAB statement containing a definition of a vector is passed as a string S. Determine the length of the vector. Inp...

12 years ago

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What's the News?
Get the top headline from Google news! Presumably using urlread and regular expressions, get what the current headline at Google...

12 years ago

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Ackermann's Function
Ackermann's Function is a recursive function that is not 'primitive recursive.' <http://en.wikipedia.org/wiki/Ackermann_fun...

12 years ago

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All Humans are Created Equal - Pareto Equality
One way or the other two sets of identical types can come out ahead of the other by idea of Pareto equality. Pareto equality b...

12 years ago

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Calculate FFT
Calculate the fft manually, without using matlab's builtin function. No cheating allowed.

12 years 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....

12 years ago

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Dudeney Numbers: Numbers which are the cube of their decimal sum
From Wikipedia: _A Dudeney number is a positive integer that is a perfect cube such that the sum of its decimal digits is equa...

12 years ago

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find the relation...
if given input is 1, output is 4. if input is 55, output is 3136.

12 years 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 ...

12 years ago

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Temperature Conversion Utility
There are a few problems on Cody regarding temperature conversion (C to K, C to F, F to C), but none include Rankine. Furthermor...

12 years 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...

12 years ago

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Neither minima nor maxima
Input v is a vector. Return all the elements of v which are not a local minimum or maximum. Example: v = [1 2 3 4 5] Ou...

12 years ago

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Tic Tac Toe Solver
Create a function that checks n number of tic tac toe boards housed in a 3x3xn matrix where the x's are represented as 1's (and ...

12 years ago

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Pairwise Euclidean Distance
Given two matrices A,B of dimensions NxK and NxL respectively, calculate the pairwise euclidean distance of all vectors (columns...

12 years ago

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Find my birthday
Given a birth date x, find my age when my birth day will fall on the same day as I was born. So if I was born on Monday, what a...

12 years ago

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Delete the rows in the middle
We will delete the rows in the middle and keep the first and the last rows. For example if input is [1 2 1 7 1 8 ...

12 years ago

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surface of parallelogram
Given 2 vectors of each 3 elements, determine the surface of the parallelogram which can be created from these 2 vectors.

12 years ago

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Chebyshev polynomials of the 2nd Kind
Given an integer _n_ ≥ 0, generate the _n_-th <http://en.wikipedia.org/wiki/Chebyshev_polynomials Chebyshev polynomial of the...

12 years ago

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Laguerre polynomials
Given an integer _n_ ≥ 0, generate the _n_-th <http://en.wikipedia.org/wiki/Laguerre_polynomials Laguerre polynomial>. *Ex...

12 years ago

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Dots in a Sphere
Return how many integer grid points there are inside a 3D sphere of radius _r_ centred at (0,0,0) (including points on the edge)...

12 years ago

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Animated GIF Creator
This Challenge is to execute the Function Template which has a fully functional Animated GIF creator of a shape related to a Zer...

12 years ago

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remove nans fast
There are several ways to locate and remove nans in a matrix, and return an 1d row vector. In this problem the challenge is ...

12 years ago