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Area of a disk
Find the area of a disk or circle. x= radius of the disk.

7 years ago

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Determine the length of a string of characters
Determine the length of a string of characters

7 years ago

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Convert Fahrenheit to Celsius
Calculate the Celsius temperature C given the Fahrenheit temperature F. Examples: Input F = 90 Output C is 32.22 I...

7 years ago

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Find the area of the four walls
If length, breadth and height of the walls are given, find the area of the four walls.

7 years ago

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Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

7 years ago

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find the roots of a quadratic equation
for e.g x = [ 2 -1 -3] y = [1.5 -1]

7 years ago

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Area of a Square
Inside a square is a circle with radius r. What is the area of the square?

7 years ago

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subtract central cross
Given an n-by-n square matrix, where n is an odd number, return the matrix without the central row and the central column.

7 years ago

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Angle between Two Vectors
The dot product relationship, a dot b = | a | | b | cos(theta), can be used to determine the acute angle between vector a and ve...

7 years ago

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Symmetric matrix
You must create a n-by-n *symmetric* matrix such that A(row,col) = row/col for col >= row. Example if n =3 : output is : ...

7 years ago

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Cody Matlab Version
What is the current Cody Matlab Release? *Output:* string *Examples:* '(R2012a)' or 'R2012a' Hint: We have mo...

7 years ago

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Create an anti-identity matrix
Create an anti-identity matrix of given dimension. Examples n = 2 A = [0 1; 1 0] n = 3 A = [0 0 1; 0 1 0; 1 0 0...

7 years ago

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Append two matrix as shown below example
Append two matrix as shown below example A=[1 2; 3 4] and B=[5 6;7 8] Answer must be 1 2 5 6 3...

7 years ago

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Form a square matrix from four square sub-matrices
Create a square matrix, y, from 4 square sub-matrices that will be constructed (x1, x2, x3, x4): y = [x1 x2; x3 x4]; ...

7 years ago

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Determine the number of odd integers in a vector
Determine the number of unique odd integers in a vector. Examples: Input x = [2 5 8 3 7 1]; Output y = 4; Inp...

7 years ago

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Get the length of a given vector
Given a vector x, the output y should equal the length of x.

7 years ago

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Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...

7 years ago

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

7 years ago

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Back to basics 7 - Equal NaNs
Covering some basic topics I haven't seen elsewhere on Cody. Given 2 input variables, output true if they are equal, false ot...

7 years ago

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Remove the polynomials that have positive real elements of their roots.
The characteristic equation for a dynamic system is a polynomial whose roots indicate its behavior. If any of the <http://www.ma...

7 years ago

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Reverse Run-Length Encoder
Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

7 years ago

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Generate a random matrix A of (1,-1)
Input n: is an positive integer which serves as the dimension of the matrix A; Output: A=(Aij),where each entry Aij is either...

7 years ago

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Celsius to Fahrenheit converter
Convert Celsius to Fahrenheit degrees.

7 years ago

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Palindrome Check
Check whether the entire matrix is palindrome or not. Example matrix = [7 8 7] matrix_reverse = [7 8 7] So the mat...

7 years ago

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Times 3 problem
When you enter the number, it should return the number multiplied by 3

7 years ago

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Swap two numbers
Example Input: a = 10 b = 20 Output a = 20 b = 10

7 years ago

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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];

7 years ago

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Make a Palindrome Number
Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

7 years ago

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Determine the mean of matrix
Determine the mean of matrix without using mean function Hint: use simple algorithm

7 years ago

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If-then-else
Complete the function below such that if the value of x is in the range 10 to 14, inclusive, the value 18 is assigned to y. Oth...

7 years ago