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Number of 1s in a binary string

Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

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Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

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Magic is simple (for beginners)

Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

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Make a random, non-repeating vector.

This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

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Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

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Swap the input arguments

Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

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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...

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Getting the indices from a vector

This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

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Elapsed Time

Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

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Matlab Basics II - Count rows in a matrix

Write a function that returns that number of rows in a vector or matrix x example: x = [1; 2; 3] output = 3

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Matlab Basics - Absolute Value

Write a script that returns the absolute value of the elements in x e.g. x = [-1 -2 -3 -4] --> y = [1 2 3 4]

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Matlab Basics II - Extract last 3 elements of a vector

Let x be a vector of unknown length, we are always interested in the last 3 numbers in the vector, write a function that gives t...

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Create a Multiplication table matrix...

Create a product table in this format: P = [ 1 2 3 4 5; 2 4 6 8 10; 3 6 9 12 15; 4 8 12 1...

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find radius of cone

if Slant height of Cone(I)& hight of Cone(H) given then find radius of the Cone(R) for example I=5,h=4 then the ans R=3;

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Solve the set of simultaneous linear equations

Given this pair of simultaneous linear equations: 2x + 3y = 23 3x + 4y = 32 Find the solution set (x,y)

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Calculate distance travelled when given radius and rotations

When given radius of wheel and number of rotations calculate total distance travelled consider pi=3.14

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Matlab Basics II - squares

Write a function that takes matrix A, and squares each element in the matrix example: A = [1 2 3] output = [1 4 9]

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Matlab Basics - Create a row vector

Write a Matlab script to create a row vector of 10 consecutive numbers x = [1 2 3 4 5 6 7 8 9 10]

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Sum the numbers on the main diagonal

Sum the numbers on the main diagonal of an n-by-n matrix. For input: A = [1 2 4 3 6 2 2 4 7]...

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Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

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Matlab Basics II - Minimum

Write a function that returns the minimum of each ROW of a matrix x example: x = [1 2 3; 4 5 6]; output [1;4];

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Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

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Given area find sides

In a right angle triangle given area 'A' one arm=x, another arm=2x then find the value of x. For example, area A=400 then ...

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Compare two input matrices

Check which input matrix has more elements. Return "1" if matrix A has more elements than matrix B. Otherwise return "0". Exa...

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distance to a straight line (2D) given any 2 distinct points on this straight line

Given 2 points P1,P2 on a straight line and a 3rd point, determine the distance of the 3rd point to the straight line. Your answ...

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Vector parallel to plane?

Given the coefficients of the equation which defines a plane as follows: ax+by+cz=d, return a boolean indicating whether the 2n...

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Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the numbers. Otherwise return false. Example...

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