A résolu

Change matrix to vector
Vector is a matrix whose size is 1 x n or n x 1. Change matrix to vector. x = 4 3 5 1 ...

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Sum the rows
Sum the rows of the given matrix. Example x = [ 1 2 3 4 ] y = [ 3 7 ]

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Create cotangent function out of sine.
Please, don't use cos, tan, cot matlab functions.

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first element of matrix
find the first elements of a column matrix

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find the mean of all elements in a matrix
given a matrix, just find the mean of all elements in the matrix

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find a specific element from an matrix
Find the element from matrix which is in 2nd row and 3rd column.

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Multiply by 3
Given the variable x as your input, multiply it by three and put the result in y.

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Converting binary to decimals
Convert binary to decimals. Example: 010111 = 23. 110000 = 48.

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Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

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factorial of a number x
Factorial of a number x

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Project Euler: Problem 6, Natural numbers, squares and sums.
The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...

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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...

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Number of Horns on a unicorn!
Calculate the number of horns on a *unicorn*! And I'm talking about a unicorn with not more than one horn on it!

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Determine Whether an array is empty
Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.

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length of a vector
Find twice the length of a given vector.

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Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

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Add two numbers
Calculate the sum of two numbers. Example input = [2 3] output = 5

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Arrange vector in ascending order
Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];

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Find max
Find the maximum value of a given vector or matrix.

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Model a mass spring system
Model an ideal mass-spring system shown below where the spring is initially stretched. <<http://blogs.mathworks.com/images/se...

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Add damping to a mass spring system
Model an ideal mass-spring-damper system shown below where the spring is initially stretched. <<http://blogs.mathworks.com/im...

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Program an exclusive OR operation with logical operators
Program an exclusive or operation *without* using the MATLAB function xor. Use logical operators like |, &, ~, ... instead. ...

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Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

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Make a half wave rectifier
Produce a signal that outputs the given sine wave source when it is greater than zero and outputs zero when it is less than zero...

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Make a full wave rectifier
Produce a full wave rectifier waveform for the given sine wave source. For a sine wave input, the output of the full wave rec...

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Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

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Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

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surface of a spherical planet
you just discovered its circumference, that is the input.

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Implement full adder circuit
Implement full adder circuit as given in <http://en.wikipedia.org/wiki/Adder_(electronics)> Inputs signals are a, b and ...

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Find 10's complement
Find 10's complement of a given number. An example is <http://electrical4u.com/9s-complement-and-10s-complement/ shown here>.

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