Problem

Complete a geometric sequence
In Cody Problem 59786 minnolina asks us to find the integer that completes a randomly sorted arithmetic sequence with one missin...

2 years ago | 1 | 12 solvers

Solved

Missing Number
Given a list of integers forming an arithmetic progression (where the difference between consecutive elements is constant), your...

2 years ago

Solved

Leader
An element of a list is called a "leader" if every element to its right (and not just the one immediately to its right) is stric...

2 years ago

Solved

Digits eliminate
Complete the function my_f(n,b) to return, for a given integer, the number obtained by removing the digits '0' and 'b'. If there...

2 years ago

Solved

Merge two integers
We want to merge the digits of two integers having the same number of digits to obtain a new integer whose digits are obtained b...

2 years ago

Solved

Counting the occurrences of a digit in a book
The printer has printed a book with 'p' pages. How many times did they use the character 'd'? In other words, how many times doe...

2 years ago

Solved

Pivot index
Let L be a vector of numbers. We are searching for the index n of the pivot element defined as follows: the dot product of the e...

2 years ago

Solved

Determine if a Digit is Isolated
A digit is considered isolated if both its left and right neighbors are different from itself. For example, in the number 776444...

2 years ago

Solved

Calculating distance of lightning based on time delay
If we know the time delay between when we see lightning and hear thunder then we can calculate approximate distance(in meters) o...

2 years ago

Solved

Image Series 3 Complementary
Find the Complementary of image which is 8 bits gray scale image. Each pixel is converted to binary format in the image. A...

2 years ago

Solved

Fast 1-D Convolution (full shape)
This is the first problem in the <http://www.mathworks.com/matlabcentral/cody/?term=Fast+1-D+Convolution fast 1-D convolution se...

2 years ago

Solved

Orthogonalize 3 column vectors using the Gram-Schmidt process
Use the Gram-Schmidt process to orthogonalize three linearly independent column vectors. Return three output column vectors that...

2 years ago

Solved

Orthogonalize a 2x2 matrix using the Gram-Schmidt process
Use the Gram-Schmidt process to orthogonalize two linearly independent column vectors. Return two output column vectors that are...

2 years ago

Problem

Express numbers as the sum of a prime, a square, and a cube
While traveling on an interstate highway, I noticed a sign that gave distances to three places. The distances were 3, 8, and 9 m...

2 years ago | 3 | 10 solvers

Problem

Solve an ODE: Ekman spiral on a solid surface
Problem Write a function to solve for and as a function of in this system of ordinary differential equations: where , ...

2 years ago | 2 | 4 solvers

Problem

Find the minimum element coprime to the rest in a set of 10 consecutive integers
In this video, Dr Barker argued that a set of 10 consecutive integers must have at least one integer coprime to the rest. For ex...

2 years ago | 1 | 8 solvers

Solved

Write a code to implement the improved Euler's method to integrate a simple function
Euler's method approximates the solution to a differential equation as where . It's possible to improve on Euler's method by ...

2 years ago

Solved

Write a code to implement Euler's method to integrate a simple function
Euler's method approximates the solution to a differential equation as where . The challenge is to write a code that can take...

2 years ago

Solved

Creating a matrix by taking shifted copies of a given vector v as columns
This problem is the same as the problem 761 except that here we are testing it for any given vector ; a row or column vector. Th...

2 years ago

Solved

Průměr z výběrového souboru
Napište funkci, která vrátí průměr z hodnot vektoru data. Např data = [1, 2, 3, 4, 5, 6, 7, 8, 9] je prumer = 5.

2 years ago

Problem

Update course numbers and abbreviations
Suppose that the educational institution where you teach purchases new software to handle many essential functions, including co...

2 years ago | 2 | 11 solvers

Solved

Swap between rows
The idea is to swap between second and second last row Ex = [1 2 3 4 5; 5 4 3 2 1; 1 2 3 4 5; 1 2 3 4 5; ...

2 years ago

Solved

Swap between first and last column
The idea is to swap between first and last column Ex = [1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; 1 2 3 ...

2 years ago

Solved

Swap between first and last
The idea is to swap between first and last row Ex = [1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; ...

2 years ago

Solved

Remove a specific character with another
Remove any (-) dash sign with (_) underscore Ex = 'The-Journey-of-thoudsands-miles-starts-with-a-single-step' y = 'The_Jour...

2 years ago

Solved

Swap between columns
The idea is to swap between second and second last column Ex = [1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; 1 2 3 4 5; ...

2 years ago

Solved

Hamiltonian Cycle
This is related to the Travelling Salesman Problem 1339 created by Alex P. A Hamiltonian cycle or traceable cycle is a path tha...

2 years ago

Solved

Langston's Ant
The <http://en.wikipedia.org/wiki/Langton%27s_ant Langston's Ant> Challenge is to determine the number of Black squares after K ...

2 years ago

Solved

Remove a specific column with min value
Remove the column that contain the min value in the matrix?

2 years ago

Solved

Remove a specific column with max value
Remove the column that contain the max value in the matrix?

2 years ago