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Chebyshev polynomials of the 1st Kind
Given an integer _n_ ≥ 0, generate the _n_-th <http://en.wikipedia.org/wiki/Chebyshev_polynomials Chebyshev polynomial of the...

12 years ago

Solved

Have you seen any Spindromes recently?
* Never been to the <http://en.wikipedia.org/wiki/Makemake_(dwarf_planet) dwarf planet makemake> yet? * Assume a new unexplore...

12 years ago

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Create matrix with Gray code
Output "g" should be a matrix of class double, with <http://en.wikipedia.org/wiki/Gray_code Gray reflected binary code>. Inpu...

12 years ago

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Fast Fourier transform algorithm
Your task is to implement the Fast Fourier transform algorithm, without using builtin MATLAB fft commands e.g. fft, fft2, or har...

12 years ago

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Make combination of two given matrices.
Make a combination of the two given matrices as a given example. Example: input1 = [1 2 3; 4 5 6]; input2 = [7 8; 9 10...

12 years ago

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Now! (Anticheating version 1)
By now, _Problem 901. Now!_ has not been solved without the use of cheats or hacks. <http://www.mathworks.com/matlabcentral/c...

12 years ago

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Altitude of locations on the earth
Find the altitude of a location on the earth, given latitude and longitude coordinates, above mean sea level. Input__________...

12 years ago

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Binary
Given a positive, integer n, create a function that returns the respective binary number in the form of a vector. Example: ...

12 years ago

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generate a matrix of Legendre polynomials
input = x - the degree of the polynomial output = matrix of Legendre polynomials

12 years ago

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Mystery problem
Given integer x between 1 and 50, return integer y=mystery(x), where mystery(1) = 111 mystery(6) = 809 ... mystery...

12 years ago

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Create a v-notch vector without "sort" function
Given a vector vec, create a v-shaped vector as shown below: vec = [ 10 2 3 89 5 7 90 0 12] ...

12 years ago

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Parse string and identify specific string sequence in algebraic equation
Given a string S that defines an algebraic expression such as: S= 'X= A1 + A2*(Y1 + A3*Y3)*exp( A4*Y12 + Y1) ;' return a...

12 years ago

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

12 years ago

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nth Rational Number
Return the nth rational number. This is the inverse to Problem <http://www.mathworks.com/matlabcentral/cody/problems/1471 1...

12 years ago

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Find the right x in a 1. order Polynomal (y = m*x+c)
Given two points in a Cartesian coordinate system, find the x-value, where polynomial of 1. order (y = m*x+c) is equal to a giv...

12 years ago

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Enlarge array
Given an mxn numeric array (A) and a 1x2 vector (sz) indicating the dimensions [p q] to enlarge each element, return an (m*p)x(n...

12 years ago

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User defined nextpow function
Create a function which will take 2 arguments as n and x, and return y, where, n^y >= abs(x). [ Similar to builtin "nextpow2" fu...

12 years ago

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rot45 : a different aproach
Inspired by problem 1840. <http://www.mathworks.com/matlabcentral/cody/problems/1840-rotate-matrix-clockwise-45-degree> ...

12 years ago

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Create a matrix with difference of each row of input matrix
With a given input matrix A, create a output matrix B in such a way that each row in B is a difference of rows of input matrix A...

12 years ago

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Repeat middle rows and columns of an array
Given an MxN numeric array (A), return an array (B) in which the middle rows and columns have each been repeated once. It may be...

12 years ago

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Factorial: Unlimited Size : java.math
This challenge is an application of java.math that allows unlimited precision calculations. The primary reference sites are <ht...

12 years ago

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Molecule Atomic Wt (CHONS) Molecules
Given a molecular equation string determine its atomic weight. Limited atoms of C H O N and S where wts are rounded to [12 1 ...

12 years ago

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Rotate Matrix Both Direction (45 Degree)
*Matrix (3x3 only) rotation*: 3 inputs: *x* matrix, *n* times and *m* option. output: *y* matrix with *n x 45* degree ...

13 years ago

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Rotate Matrix Clockwise (45 Degree)
*Matrix (3x3 only) rotation clockwise*: 2 inputs: *x* matrix and *n* times. output: *y* matrix with *n x 45* degree ro...

13 years ago

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Pascal's pyramid
In Pascal's triangle each number is the sum of the two nearest numbers in the line above: 1 1 1 ...

13 years ago

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Bang Bang in Bangalore
Imagine a strange language disorder, Bangolangosis, has developed among trigonometricians of <http://en.wikipedia.org/wiki/Banga...

13 years ago

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bad colorimeter?
You have tested one good and one bad colorimeters with a colored solution at two path lengths of light and recorded transmittanc...

13 years ago

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speed vs size
The given string describes some MATLAB expressions such as 'pause(1)'. Compute its performance score = code size + run time in m...

13 years ago

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Find the jerk
No, it's not the author of this problem... Jerk is the rate of change in acceleration over time of an object. So, if given t...

13 years ago

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Create a dictionary
The goal is to write a function that returns a dictionary from a list of words or phrases and their definitions. Here is an exam...

13 years ago