Community Profile

# Alexander Wallar

### American International School of Bucharest

16 total contributions since 2011

I am from the United States. I am 16 years old and attend the American International School of Bucharest. I am fairly new to MATLAB but I understand it well.

Professional Interests: Application Development

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Solved

Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

fast 8 Jahre ago

Solved

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

fast 8 Jahre ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

fast 8 Jahre ago

Solved

Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

fast 8 Jahre 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...

fast 8 Jahre ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

fast 8 Jahre ago

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

fast 8 Jahre ago

Solved

Given a and b, return the sum a+b in c.

fast 8 Jahre 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:...

fast 8 Jahre ago

Solved

Find the "ordinary" or Euclidean distance between A and Z
A, B and Z define three points in the 3D _Euclidean_ space of the form: A = [x1;y1;0]; B = [x2;y2;0]; Z = [x2;y2;z]; Find th...

fast 8 Jahre ago

Submitted

Picture Transformation Finder
This function finds the transformation matrix of two images.

Submitted

cellSearch
This function returns the position in a cell of an element in which you are looking for.

Submitted

dnaTranslate
This function translates DNA nucleotides into Amino Acids

Submitted

Picture Encryption and Decryption
This algorithm decrypts and encrypts images based on keys

Submitted

Improved Base Expansion Algorithm
This is an improvement of my last base expansion algorithm