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Convert Two Character String into a Binary Vector
Given a string "XOXXO" convert it into a binary vector. [1 0 1 1 0] Paul Berglund implemented an optimal method in <http://ww...

nästan 11 år ago

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Close MATLAB with keyboard
Close MATLAB with keyboard without using mouse

nästan 11 år ago

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Perl 1: push
_This is part of a series of perl function which were very helpful for many perl programmers. Could you implement it in Matlab?_...

nästan 11 år ago

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Accessing elements on the diagonal
Access the diagonal elements of a matrix without 'diag' function

nästan 11 år ago

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Basics: Divide integers to get integer outputs in all cases
Divide integers a and b in such a way that output y is always an integer (in ceil manner)

nästan 11 år ago

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Convert elements in numeric array into different class
Write a function that converts elements in a numeric array into a different class. Example: a = [1:5]; % class: double b...

nästan 11 år ago

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Volume and area of a sphere
Input(r) - radius Output([v,s]) - volume and area

nästan 11 år ago

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find the maximum element of the matrix
for e.g x = [1 2; 3 4] y = 4

nästan 11 år ago

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Is the input divisible by 3?
Return true if the input is divisible by 3 and false if not.

nästan 11 år ago

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Wheat on a chessboard pt 1
If a chessboard were to have wheat placed upon each square such that one grain were placed on the first square and each successi...

nästan 11 år ago

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When can one be the Life Member of the IEEE?
Consult the site http://en.wikipedia.org/wiki/Ieee from where it can be seen that IEEE Members who have reached the age of 65 an...

nästan 11 år ago

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Simple date to serial no. conversion
Convert a date string to a serial date number. For example if you take x='19-May-2001' then the result is 730990 x...

nästan 11 år ago

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Moving average (variable kernel length)
Find the moving average in a vector. The kernel length is a variable. For example x = 1:10 kernel_length = 2 would r...

nästan 11 år ago

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Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Given a number _n_, return the terminal value of the number chain formed by summing the square of the digits. According to the P...

nästan 11 år ago

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Mode
Find the mode of the vector Assumption: no vector is bimodal Example 1: input=[1 2 3 4 4]; output=4 Example 2: input=[7...

nästan 11 år ago

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Frobenius Norm
Write your own version of Frobenius Norm without using the 'norm' function.

nästan 11 år ago

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Find the logic
There exists one logic in between input and output. Find it (easy math). Example 1: x=13 then y=339; Example 2: x=26...

nästan 11 år ago

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The sum of the numbers in the vector
eg. [1,2,3]---->SUM=6

nästan 11 år ago

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Calculate the derivative of a polynomial
Example: in = [ 1 1 1 ] out = [ 2 1 ]

nästan 11 år ago

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Switch matrix to a column vector
for e.g. x = [1 2 3 4] y = 1 3 2 4

nästan 11 år ago

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Relative ratio of "1" in binary number
Input(n) is positive integer number Output(r) is (number of "1" in binary input) / (number of bits). Example: * n=0; r=...

nästan 11 år ago

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Create an n-by-n null matrix and fill with ones certain positions
The positions will be indicated by a z-by-2 matrix. Each row in this z-by-2 matrix will have the row and column in which a 1 has...

nästan 11 år ago

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Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed
Find the remaining side of a triangle given the hypotenuse and a side. However, the normal functions and symbols are not allowe...

nästan 11 år ago

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Penny flipping - calculate winning probability (easy)
Two players are playing a fair penny flipping game. For each flip, the winner adds one penny from the loser's collection to his/...

nästan 11 år ago

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Generate pi using logarithm
Generate pi using logarithm

nästan 11 år ago

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sinus function
x is the abscissa. find the absolute value of cosine of -x and the same value with changed sign.

nästan 11 år ago

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Elapsed time is -0.005204 seconds.
Write a function that takes less than zero seconds to execute, as measured using tic and toc. For repeatability, the test case p...

nästan 11 år ago

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It's race time! Write a faster function than the test suite call of unique().
Write a function to get unique elements of a vector faster than unique()! Input will be a vector (of integers or floating point ...

nästan 11 år ago

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Who has power to do everything in this world?
There is only one person who is older than this universe. He is Indian version of Chuck Norris.

nästan 11 år ago

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Guess Cipher
Guess the formula to transform strings as follows: 'Hello World!' --> 'Ifmmp Xpsme!' 'Can I help you?' --> 'Dbo J ifmq zpv...

nästan 11 år ago