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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 ...

7 years ago

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Unit Matrix

Given n, you should return an n-by-n unit matrix. Example: If input is n=2 then A = [ 1 0 0 1 ] If input ...

7 years ago

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Back to basics - mean of corner elements of a matrix

Calculate the mean of corner elements of a matrix. e.g. a=[1 2 3; 4 5 6; 7 8 9;] Mean = (1+3+7+9)/4 = 5

7 years ago

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Matrix Construction I

Given n, construct a matrix as shown in the example below. Example For n=8, the output should look like this: 1 2 3 4 ...

7 years ago

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Weighted average

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

7 years ago

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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...

7 years ago

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Speed of car travelling x meters in y seconds

What is the speed of a car if the car travelled x meters in y seconds? Supply the answer in m/s.

7 years ago

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Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

7 years ago

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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...

7 years ago

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multiply by three

Given the variable x as your input, multiply it by 3 and put the result equal to y. Examples: Input x = 2 Output y is ...

7 years ago

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Factorial Numbers

Factorial is multiplication of integers. So factorial of 6 is 720 = 1 * 2 * 3 * 4* 5 *6 Thus 6 factorial = factorial(720)....

7 years ago

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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

7 years ago

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sum of first 'n' terms

Given n=10, find the sum of first 'n' terms Example: If n=10, then x=1,2,3,4,5,6,7,8,9,10. The sum of these n=10 terms is 55...

7 years ago

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Who invented zero?

We know the importance zero in computer science, mathematics... but who invented zero? Clue: He was the first in the line ...

7 years ago

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Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

7 years ago

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Say something funny

Say something funny, or not. Your solution will be (fully automatically and objectively) scored based on how clever or funny ...

7 years ago

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Angle between two vectors

You have two vectors , determine the angle between these two vectors For example: u = [0 0 1]; v = [1 0 0]; The a...

7 years ago

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Produce a sine wave

Produce a sine wave with amplitude 3: <<http://blogs.mathworks.com/images/seth/cody/sine-eqn.png>>

7 years ago

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Produce a cosine wave

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/cosine-eqn.png>>

7 years ago

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Add a block to a model

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-block-eqn.png>> In this case, the slope of...

7 years ago

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Connect blocks in a model

Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

7 years ago

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Multiply by 3

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

7 years ago

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Squaring Matrix

Square the following matrix using matlab % A = 1 2 3 4 5 6 7 8 So new matrix should display...

7 years ago

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Who knows the last digit of pi?

There is only one man who knows the last digit of pi, who is that man? Give the name of that man, who, by popular believe, can ...

7 years ago