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How many monitors are connected ?
How to obtain the numbers of monitors connected to your computer ?
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DC chopper
Input x is the sampled signal vector, may have both AC and DC components. output vector y should have AC components removed then...
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Detect a number and replace with two NaN's
Write code which replaces the number 1 with two NaNs. Example X = [ 1 2 NaN 4 1 3 7 NaN 1 4 NaN 2] ...
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Remove from a 2-D matrix all the rows that contain at least one element less than or equal to 4
Example: in = magic(5) in = 17 24 1 8 15 23 5 7 14 16 4 6 13 20 ...
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Upper triangular matrix
Create a function to retrieve the upper triangular matrix of a matrix (without using tril). The matrix will always be square. ...
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Put Two 1D matrices into one 1D matrix
Example: If input a = [1 2 3 4 5]; input b = [10 9 8 7 6]; then output will be, y_correct = [1 10 2 9 3 8 4 7 5...
alrededor de 6 años hace
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Evaluate Polynomial
Given a polynomial equation coefficients in a vector p, you have to return its value at x. Example: For inputs p and x ...
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Roots
Find out the roots of a given polynomial equation.Given are the coefficients of the equation.
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Sum the real and imaginary parts of a complex number
Sum the real and imaginary parts of a complex number. Example c = 1+2i has the solution 1 + 2 = 3
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Find out magnitude of vector
Find out magnitude of vector. Say x=[1 2 3], then answer must sqrt(1^2+2^2+3^2) Please don't use sum function. If you l...
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Day counter function
Write a function called _day_counter_ that returns the number of Mondays that fell on the first day of the month in a given year...
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Odd elimination
Inspired by Project Euler problem #539 You'll be given a vector from 1 to n; Going from left to right, remove the first n...
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Pseudo Square Root (Inspired by Project Euler 266)
Shamelessly copied from the Project Euler page for Problem 266: ------------- The divisors of 12 are: 1,2,3,4,6 and 12. T...
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Find best domino orientation
Given a list of pairs, find the orientation they should be placed in a line, such that the sum of the absolute values of the dif...
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Find best placement for ordered dominoes (harder)
Given a list of ordered pairs, find the order they should be placed in a line, such that the sum of the absolute values of the d...
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Find perfect placement of non-rotating dominoes (easier)
Given a list of ordered pairs, find the order they should be placed in a line, such that the sum of the absolute values of the d...
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Choose the best fitting dominoes
You will be given a cell array of nx2 matrices. Choose one row from each matrix. These are the ordered pairs that will be plac...
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Rotate and display numbered tile
Imagine a square tile with four numbers on it, one on each edge. We will call these edges north, east, south, and west. If th...
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drowsy?
This dog() may be drowsy or function immediately when you call, return 1 or 0 accordingly within 2/10 second.
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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...
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count to vector
Return a matrix of numbers of dimension K by N, where K = prod(v), and N=length(v). The rows count from a vector of ones up to v...
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Count from 0 to N^M in base N.
Return an array of numbers which (effectively) count from 0 to N^M-1 in base N. The result should be returned in a matrix, with ...
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Largest Geometric Series
Extension of Ned Gulley's wonderful <http://www.mathworks.com/matlabcentral/cody/problems/317 Problem 317>. In a geometric se...
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Find similar sequences
Another problem inspired by a question on the <http://www.mathworks.com/matlabcentral/answers answers> forum. Given a matrix ...
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Enviada
Sudoku Solver by Recursive Backtracking
A standard implementation of recursive backtracking in solving a Sudoku puzzle
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Generate Square Wave
Generate a square wave of desired length, number of complete cycles and duty cycle. Here, duty cycle is defined as the fraction ...
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geometric progression
I've modified my <http://uk.mathworks.com/matlabcentral/cody/problems/2800-arithmetic-progression previous program> so that it n...
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arithmetic progression
I've written a program to generate the first few terms of <https://en.wikipedia.org/wiki/Arithmetic_progression arithmetic progr...
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English to Pig Latin Translator
Pig latin is a faux-language based off of English. The rules are as follows (excerpted from the wikipedia entry for Pig Latin): ...
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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...
alrededor de 6 años hace