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Replace Vector Elements
Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

fast 14 Jahre vor

Gelöst

Use of regexp
* Given a string, containing several sentences, such as: * 'I played piano. John played football. Anita went home. Are you safe...

fast 14 Jahre vor

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Covering area
As an extension of the problem <http://www.mathworks.com/matlabcentral/cody/problems/416-polygon-area>, find the area, bounded b...

fast 14 Jahre vor

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Find the Kronecker Tensor Product without using KRON
The Kronecker Tensor Product is the result of multiplying all elements of a matrix with each of the elements of another matrix. ...

fast 14 Jahre vor

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cos for boss?
a programmer had too much coffee and his boss needs cos(alpha+beta) correctly, especially when alpha or beta or the coffee are c...

fast 14 Jahre vor

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Dancing with wolves?
let wolf() make one or two steps to get a feel of the beat, it is waltz, do not let wolf() make the third step, return safely ju...

fast 14 Jahre vor

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Numbers with prime factors 2, 3 and 5.
Make a function which takes one positive integer n and returns a matrix with the numbers of the form (2^i)*(3^j)*(5^k) which are...

fast 14 Jahre vor

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Return elements unique to either input
Given two numeric inputs a and b, return a row vector that contains the numbers found in only a or only b, but not both. For ex...

fast 14 Jahre vor

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Vectorizing, too easy or too hard?
Please insert a . before any ^, * or / in the string. That's it!!

fast 14 Jahre vor

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Number of bytes required to store a sparse matrix
The input is always a *sparse* matrix : x = sparse(100,1000,0.01); >>whos x shows that 4016 bytes ares required . ...

fast 14 Jahre vor

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Remove the two elements next to NaN value
The aim is to *remove the two elements next to NaN values* inside a vector. For example: x = [6 10 5 8 9 NaN 23 9 7 3 21 ...

fast 14 Jahre vor

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Alias abs to asb
Create an alias of a built-in function name. Goal is to alias asb with abs for dyslexic typers. The test suite will be ...

fast 14 Jahre vor

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Remove NaNs and numbers adjacent to NaNs
The aim is to remove the elements before and after NaN occurrences inside a vector. For example: x = [6 10 5 8 9 NaN 23 1...

fast 14 Jahre vor

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Make an awesome ramp for a tiny motorcycle stuntman
Okay, given a vector, say v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 3 6 9 11 0; 6 9 ...

fast 14 Jahre vor

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Project Euler: Problem 8, Find largest product in a large string of numbers
Find the greatest product of five consecutive digits in an n-digit number. 73167176531330624919225119674426574742355349194934...

fast 14 Jahre vor

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Mandelbrot Numbers
The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

fast 14 Jahre vor

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Create a function handle that reverses the input arguments of another function handle
Given a function that takes two input arguments and returns one output, create another function handle that performs the same op...

fast 14 Jahre vor

Gelöst

Project Euler: Problem 5, Smallest multiple
2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smalle...

fast 14 Jahre vor

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Remove the polynomials that have positive real elements of their roots.
The characteristic equation for a dynamic system is a polynomial whose roots indicate its behavior. If any of the <http://www.ma...

fast 14 Jahre vor

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root?
* Given a function 'foo', and a position 'there', find the root near 'there'. * For example: If foo=@sin, and there=3.1, then r...

fast 14 Jahre vor

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It dseon't mettar waht oedrr the lrettes in a wrod are.
An internet meme from 2003 (read more <http://www.snopes.com/language/apocryph/cambridge.asp here>) asserted that readers are re...

fast 14 Jahre vor

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Read a column of numbers and interpolate missing data
Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

fast 14 Jahre vor

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Differential equations I
Given a function handle |f| an initial condition |y0| and a final time |tf|, solve numerically the differential equation dy...

fast 14 Jahre vor

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Create One Large Eye of size N x N Quickly?
*<http://en.wikipedia.org/wiki/Aye_(yes) Aye !!!>*

fast 14 Jahre vor

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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...

fast 14 Jahre vor

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Matrix indexing with two vectors of indices
Given a matrix M and two index vectors a and b, return a row vector x where x(i) = M(a(i),b(i)).

etwa 14 Jahre vor

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Return unique values without sorting
If the input vector A is [42 1 1], the output value B must be the unique values [42 1] The *values of B are in the s...

etwa 14 Jahre vor

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Leaking?
Graham's law states that the rate of effusion of a gas is inversely proportional to the square root of its molecular weight. A b...

etwa 14 Jahre vor

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Angle of triangle
For three unknown points a b c, given three sides ab bc ca, find three angles abc bca cab in radians. Your function should b...

etwa 14 Jahre vor

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collision
several cars (n) were involved in this collision, the input matrix (vm) has n rows and two columns, first column for velocity an...

etwa 14 Jahre vor