Solved

Convert given decimal number to binary number.
Convert given decimal number to binary number. Example x=10, then answer must be 1010.

10 years ago

Solved

house of cards
How many cards do one need to build a house of cards with n stages? Short explanation: /\ 2 cards for 1 stage ...

10 years ago

Problem

Sorting integers by their digits (Level 4)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42815-sorting-integers-by-their-digits-level...

10 years ago | 6 | 45 solvers

Problem

Sorting integers by their digits (Level 3)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42811-sorting-integers-by-their-digits-level...

10 years ago | 1 | 59 solvers

Problem

Sorting integers by their digits (Level 2)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42809-sorting-integers-by-their-digits Probl...

10 years ago | 2 | 59 solvers

Solved

Sorting integers by their digits (Level 1)
Given a vector, v, of positive integers, return a vector, w, by sorting v in ascending order, such that primary sorting is done ...

10 years ago

Problem

Sorting integers by their digits
Given a vector, v, of positive integers, return a vector, w, by sorting v in ascending order, such that primary sorting is done ...

10 years ago | 4 | 87 solvers

Solved

Sort the vector with the given index
Given x = [1 2 4 8 17] and t = [1 3 2 5 4] then y = [1 4 2 17 8].

10 years ago

Solved

Find the palindrome
Given the string a, find the longest palindromic sub-string b. So when a = 'xkayakyy'; you should return b = 'kayak';

10 years ago

Problem

Sum of logarithms
Given a vector, v, of real positive numbers, compute the sum, s, of the base-10 logarithms of the elements of v, without the use...

10 years ago | 1 | 96 solvers

Solved

Approximate e
Given a and n, compute and approximation to f = a * e ^ n, without the use of exp, string operations, or floating point numbers....

10 years ago

Problem

Approximate e
Given a and n, compute and approximation to f = a * e ^ n, without the use of exp, string operations, or floating point numbers....

10 years ago | 2 | 62 solvers

Problem

Britney Unfolded
You have a long, narrow strip of paper. You are going to fold this strip of paper length-wise in half, than fold the folded stri...

10 years ago | 1 | 17 solvers

Solved

Divisible by 3
Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/42404-divisible-by-2 first problem> in this series, this o...

10 years ago

Solved

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 ...

10 years ago

Solved

Matlab Basics II - Extract last 3 elements of a vector
Let x be a vector of unknown length, we are always interested in the last 3 numbers in the vector, write a function that gives t...

10 years ago

Solved

Test Problem; Create a 5x5 array containing all ones
This is a test for learning the process of creating a Cody problem. The goal of this test problem will be to create an array,...

10 years ago

Solved

Power of n ?
Determine if _x_ (positive integer) is a power of _n_, return true or false accordingly.

10 years ago

Solved

Power supply: 230V to 115V
The problem is simple: we have a wall outlet which supplies 230V and an apparatus that requires 115V. Software is always chea...

10 years ago

Solved

Small Riddle
Mr. Smith has two children. If the older child is a boy, what are the odds that the other child is also a boy?

10 years ago

Solved

Divide by 4
Given the variable x as your input, divide it by 4 and put the result in y.

10 years ago

Solved

Strange Number Algorithms
Three integer numbers will be provided to you. Write a function to Step1: Multiply first number by 3. Step2: Add 6 with t...

10 years ago

Solved

Sum Even Numbers
Given a number x, make the summation of all the even until x. For instance, x = 7, so y = 2+4+6 = 12 * x = [3] * y = 2 * ...

10 years ago

Solved

solve for y that is half as much as three less than one tenth of x
function y = half(x) y = (x * .1); end

10 years ago

Solved

Solve Linear equations
Solve Linear equations Example: x+y=2 and x+2y=3, then x and y equal to 1.

10 years ago

Solved

Sum of the Multiplication of Vectors
Given the vectors x and y as input, multiply the vectors and return the summation of its elements. Example: x = [1 2 ...

10 years ago

Solved

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...

10 years ago

Solved

Find Out sum of principal diagonal element of given matrix
Find out sum of principal diagonal element of given matrix If A=[1 0 0; 0 1 0;0 0 1], then answer must be 3.

10 years ago

Solved

Box!
Given a box, find the volume of the cube. With each side = a.

10 years ago

Solved

Diagonal & Anti-Diagonal Matrix: Easy
Create a matrix as shown below from "magic" square. For example: if input x=9;then use mgic(x) and create the matrix...

10 years ago