Solved

Clean the List of Names
Given a list of names in a cell array, remove any duplications that result from different capitalizations of the same string. So...

4 years ago

Solved

Piecewise linear interpolation
Given an Mx2 vector and a row of M-1 integers, output a two column vector that linearly interpolates Y times between each succes...

4 years ago

Solved

Put two time series onto the same time basis
Use interpolation to align two time series onto the same time vector. This is a problem that comes up in <http://www.mathwork...

4 years ago

Solved

Getting logical indexes
This is a basic MATLAB operation. It is for instructional purposes. --- Logical indexing works like this. thresh = 4...

4 years ago

Solved

Return a list sorted by number of consecutive occurrences
Inspired by Problem 38 by Cody Team. Given a vector x, return a vector y of the values in x sorted by the number of CONSECUTIVE...

4 years ago

Solved

middleAsColumn: Return all but first and last element as a column vector
Given input A, return all but the first and last elements, arranged as a column vector. (I.e., all dimensions after the first s...

4 years ago

Solved

intersection of matrices
Given two matrices filled with ones and zeros, determine if they share a common row, column entry. These matrices are of identi...

4 years ago

Solved

Diophantine Equations (Inspired by Project Euler, problem 66)
Consider the quadratic Diophantine equation of the form: x^2 – Dy^2 = 1 When D=13, the minimal solution in x is 649^2 – 13...

4 years ago

Solved

Construct a continued fraction for a square root

4 years ago

Solved

give nth decimal place of pi
max 15th place after the decimal point is ok for now

4 years ago

Solved

Are all the three given point in the same line?
In this problem the input is the coordinate of the three points in a XY plane? P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) how can...

4 years ago

Solved

Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Given a number _n_, return the terminal value of the number chain formed by summing the square of the digits. According to the P...

4 years ago

Solved

Find out missing number from a vector of 9 elements
You are given a vector of size 9, x = [x1 x2 x3 x4 x5 x6 x7 x8 x9] Elements of x may be randomly selected without repeati...

4 years ago

Solved

Reverse the elements of an array
Reverse the order of elements in an array: eg: input X = [ 1 2 3 ; 4 5 6 ; 7 8 9 ] o...

4 years ago

Solved

remove nans fast
There are several ways to locate and remove nans in a matrix, and return an 1d row vector. In this problem the challenge is ...

4 years ago

Solved

Is the input divisible by 3?
Return true if the input is divisible by 3 and false if not.

4 years ago

Solved

Indirect Sorting
Assume that x is an n-by-2 matrix. The aim is to return the first column of x, but sorted according to the second column. Exa...

4 years ago

Solved

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

4 years ago

Solved

Find the absolute value of of the array

4 years ago

Solved

Find Missing Number
A little problem (inspired by CodeChef) for the coffee break. A friend give you an array of size n-1 integers and these int...

4 years ago

Solved

Find the area of a triangle having vertices (A,B), (C,D), and (E,F)
Find the area of a triangle using if we have the three vertices of the triangle

4 years ago

Solved

Odd row
Create a row 'y' with odd numbers where the potential maximum number is given by 'x' and the space between them by 'm'. The firs...

4 years ago

Solved

Add the number of horizontal and vertical movements to each matrix element
Given n, create a square matrix and with element (1,1) = 1, add 1 to each element for each horitizonal and vertical movement. E...

4 years ago

Solved

Matrix rotation
You are given a 2D matrix of dimension [m,n] and a positive integer r. You have to rotate the matrix r times and print the resul...

4 years ago

Solved

Getting the row and column location from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get <http://www.mathwo...

4 years ago

Solved

Getting the absolute index from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get the <http://www.ma...

4 years ago

Solved

Related Vectors
I have two vectors A & B. If the values in vector A is zero then the corresponding value in vector B should be zero. Example:...

4 years ago

Solved

First use of arrayfun() and anonymous function @(x)
Create an anonymous function using @(x) for a parabola equation for the given coefficients stored in s with s(1)x2 + s(2)x + s(...

4 years ago

Solved

There are 10 types of people in the world
Those who know binary, and those who don't. The number 2015 is a palindrome in binary (11111011111 to be exact) Given a year...

4 years ago

Solved

Converting binary to decimals
Convert binary to decimals. Example: 010111 = 23. 110000 = 48.

4 years ago