Faculty member in civil & environmental engineering

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It's going down. We're finding simbers!

This problem is inspired by Project Euler 520: Simbers. "We define a simber to be a positive integer in which any odd digit, ...

5 hours ago

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Repeat middle rows and columns of an array

Given an MxN numeric array (A), return an array (B) in which the middle rows and columns have each been repeated once. It may be...

5 hours ago

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Replace secondary diagonal elements of a square array

Replace all the secondary diagonal elements of the square array A with the number n Example: A = [1 2 3 4 5 6 ...

16 hours ago

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Add Me To Death (Sum sum sum)

Given certain vector, sum of the input vector, get the sum of 2 adjacent numbers in the input, and sum of the output vector (wh...

2 days ago

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Encode Me From The Past

Given this input x = 2, 5, 1, 2, 4, 1, 1, 3 output should be (Five 2's, Two 1's, One 4, Three 1's) [2 2 2 2 2 1 1 4 1...

2 days ago

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Create Truth Table of Size according to input

Create a Truth Table Example: n = 3 output = [0 0 0; 0 0 1; 0 1 0; 0 1 1; 1 0 0; 1 0 1; 1 1 0; 1 1 1]

2 days ago

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Count me in

Count the number of occurrences of the second input in the first input Ex. x1 = 12344455511; x2 =2; output = 1 ...

2 days ago

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Back to basics 5 - Clipboard

Covering some basic topics I haven't seen elsewhere on Cody. Copy the input string to the clipboard

2 days ago

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poll: would you like the regexp (?@cmd) functionality to be banned in Cody?

This problem is a poll (and a little bit of "white hat hacktivism" as well) regarding Cody users sentiment about the use of rege...

2 days ago

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generate the matrix

given a value n (say 4) - generate the matrix like below y= [0 1 2 3 4; -1 0 1 2 ...

2 days ago

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Ugly numbers - 03

For this case, a number is defined ugly if it has prime factors consisting of only elements of x. Find the nth ugly number. ...

2 days ago

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Ugly numbers - 02

Ugly numbers are those whose prime factors are 2, 3 or 5. find the nth ugly number. n.b. unlike the previous problem,trivi...

2 days ago

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Pluralization

Define function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise. This is handy for displaying messages from a...

2 days ago

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Create a matrix with difference of each row of input matrix

With a given input matrix A, create a output matrix B in such a way that each row in B is a difference of rows of input matrix A...

2 days ago

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Back to basics - array operations

Without performing actual arithmetic operations on arrays, return feasibility of operation as true or false. True if given opera...

2 days ago

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Matrix rotation as per given angle

Given a user defined matrix and angle of rotation, rotate the elements of output matrix as clockwise or anti-clockwise. Angle wi...

2 days ago

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Rotate Matrix Clockwise (45 Degree)

*Matrix (3x3 only) rotation clockwise*: 2 inputs: *x* matrix and *n* times. output: *y* matrix with *n x 45* degree ro...

3 days ago

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Rotate Matrix Both Direction (45 Degree)

*Matrix (3x3 only) rotation*: 3 inputs: *x* matrix, *n* times and *m* option. output: *y* matrix with *n x 45* degree ...

3 days ago

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Frobenius Norm

Write your own version of Frobenius Norm without using the 'norm' function.

3 days ago

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Power The Product

EXAMPLE: INPUT x=10 & y=10 OUTPUT z=1000000 or, INPUT x=2 & y=3 OUTPUT z= 216 you just need to calculate the product first...

3 days ago

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Test of Quiz

Answer the questions and write in vector. Only one answer is correct. The founder of fuzzy logic is 1a) D. Golberg 1b)...

3 days ago

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Test

Answer the question and the correct answer write in vector. Only one answer is correct. 1a Yes 1b No 1c No 1d No ...

3 days ago

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average for three points

how to calculate the average (for each three values of y) y=[2 3 5 3 4 2 3 4 5 3 2 7 8 6 5 5 4 3 3 3 2 ] you ...

3 days ago

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Convert number from given base to other base

Convert number from given base to other base. Example 400 in base 5, find equivalent number in base 8, it is 144.

3 days ago

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Delete 2nd and 5th column of Given 6*6 matrix

Delete the 2nd and 5th columns of the given 6*6 matrix. Example Suppose A = magic(6) 35 1 6 26 19 ...

3 days ago

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Change the first and last diagonal element of the identity matrix to zero

Starting with the identity matrix, change first and last diagonal element to zero. Example If n=5 A = 0 0 ...

3 days ago