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Solved

The Goldbach Conjecture

The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

11 dagen ago

Solved

Poly2mask, drawpolygon or patch

Recently, I tried to plot a polygon in matlab, and I found there is a lot of embedded function that can be used. However, some f...

ongeveer een maand ago

Solved

Project Euler: Problem 9, Pythagorean numbers

A Pythagorean triplet is a set of three natural numbers, a b c, for which, a^2 + b^2 = c^2 For example, 3^2 + 4^2 = 9 + 16 ...

3 maanden ago

Solved

Project Euler: Problem 8, Find largest product in a large string of numbers

Find the greatest product of five consecutive digits in an n-digit number. 73167176531330624919225119674426574742355349194934...

3 maanden ago

Solved

Project Euler: Problem 4, Palindromic numbers

A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 ...

3 maanden ago

Solved

Project Euler: Problem 3, Largest prime factor

The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number being input, input might be ui...

3 maanden ago

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

3 maanden ago

Solved

We love vectorized solutions. Problem 1 : remove the row average.

Given a 2-d matrix, remove the row average from each row. Your solution MUST be vectorized. The solution will be tested for ac...

5 maanden ago

Solved

Musical Note Interval 1 - Diatonic Scale

Assuming a simple diatonic C scale, calculate the interval (integer) between two notes (provided as strings). By applying number...

5 maanden ago

Solved

The Piggy Bank Problem

Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

12 maanden ago

Solved

Integer or Float?

Test an input to see whether it is an integer or a floating point number. If it is an integer return 1 for 'true'. Otherwise ret...

ongeveer 3 jaar ago

Solved

Solve a System of Linear Equations

Given a constant input angle θ(theta) in radians, create the coefficient matrix(A) and constant vector(b) to solve the giv...

ongeveer 3 jaar ago

Solved

Verify Law of Large Numbers

If a large number of fair N-sided dice are rolled, the average of the rolls is likely to be close to the expected value of a sin...

ongeveer 3 jaar ago

Solved

Find the Oldest Person in a Room

Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

ongeveer 3 jaar ago

Solved

Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

ongeveer 3 jaar ago

Solved

Magic is simple (for beginners)

Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

meer dan 3 jaar ago

Solved

Make a random, non-repeating vector.

This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

meer dan 3 jaar ago

Solved

Roll the Dice!

*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

meer dan 3 jaar ago

Solved

Number of 1s in a binary string

Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

meer dan 3 jaar ago

Solved

Return the first and last character of a string

Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

meer dan 3 jaar ago

Solved

Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

meer dan 3 jaar ago

Solved

Getting the indices from a vector

This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

meer dan 3 jaar ago

Solved

Check if number exists in vector

Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

meer dan 3 jaar ago

Solved

Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

meer dan 3 jaar ago

Solved

Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

meer dan 3 jaar ago

Solved

Swap the input arguments

Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

meer dan 3 jaar ago

Solved

Reverse the vector

Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

meer dan 3 jaar ago

Solved

Length of the hypotenuse

Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

meer dan 3 jaar ago

Solved

Generate a vector like 1,2,2,3,3,3,4,4,4,4

Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

meer dan 3 jaar ago

Solved

Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

meer dan 3 jaar ago