Undergrad Sophomore in the Dept. of Water Resources Engineering

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Draw 'D'.

Draw a x-by-x matrix 'D' using 0 and 1. example: x=4 ans= [1 1 1 0 1 0 0 1 1 0 0 1 1 1 1 0]

28 days ago

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Draw 'F'

Draw a x-by-x matrix 'F' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 1 1 0 0 0 0 ...

28 days ago

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Draw 'H'

Draw a x-by-x matrix 'H' using 1 and 0. (x is odd and bigger than 2) Example: x=5 ans= [1 0 0 0 1 1 0 0 0 1 ...

28 days ago

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Draw a 'N'!

Given n as input, generate a n-by-n matrix 'N' using 0 and 1 . Example: n=5 ans= [1 0 0 0 1 1 1 0 0 1 1 0 ...

28 days ago

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Most nonzero elements in row

Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

28 days ago

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Back to basics 6 - Column Vector

Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...

1 month ago

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Maximum value in a matrix

Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

1 month ago

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Is A the inverse of B?

Given a matrix A and a matrix B, is A the inverse of B? >>A=[2,4;3,5]; >>B=[-2.5,2;1.5,-1]; >>isInverse...

1 month 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 ...

1 month 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

1 month ago

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Bottles of beer

Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

1 month ago

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Given the variable x as your input, multiply it by four, then divide it by two. Then put the result in y.

If x = 5, y = 4*5/2 = 10

1 month ago

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Determine the square root

Determine the square root of the value the user has entered, n.

1 month ago

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Y=X

Given an input variable x, output a variable y that is equal in value to x. Example: Input x = 1 Output y is 1 Inp...

1 month ago

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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.

1 month ago

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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 ...

1 month ago

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Area of a Square

Given the length x of the side of a regular square, find the area of the square, A.

1 month ago

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Annual Salary

What is the annual salary of Mr. Cody if he works 40 hours a week and gets $x per hour and a yearly bonus of $2000? (Let, 50 wee...

1 month ago

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Area of a circle

Given the radius x, y would be the area of a circle. Pi = 3.1416

1 month ago

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Write a code that will follow the equation y = x * (x + x) * x.

If x = 5, y = 5 * (5+5) * 5 = 250

1 month ago

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Why Do I keep getting NaNs in my code???

NaN stands for Not a Number. If your variable/matrix/input does not have the specific number/range that should meet the argument...

Why Do I keep getting NaNs in my code???

NaN stands for Not a Number. If your variable/matrix/input does not have the specific number/range that should meet the argument...

1 month ago | 0

Answered

MATLAB Cody locked solutions to a solved problem

Yes, you cannot view the solutions which are shorter than your solution in size. You can only view the solutions which are of s...

MATLAB Cody locked solutions to a solved problem

Yes, you cannot view the solutions which are shorter than your solution in size. You can only view the solutions which are of s...

1 month ago | 0

Question

My problems are vanished

I created some problems last night and created a group too. All those are now missing. Also my ranking progress, activites, bad...

1 month ago | 1 answer | 0