Alexander Wallar

American International School of Bucharest

Active since 2011

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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.

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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 + ...

13 years 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...

13 years 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 ...

13 years ago

Solved

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

13 years 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...

13 years ago

Solved

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

13 years 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...

13 years ago

Solved

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

13 years 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:...

13 years 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...

13 years ago

Submitted

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

14 years ago | 1 download |

0.0 / 5

Submitted

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

14 years ago | 2 downloads |

4.0 / 5

Submitted

dnaTranslate
This function translates DNA nucleotides into Amino Acids

14 years ago | 1 download |

0.0 / 5

Submitted

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

14 years ago | 2 downloads |

3.7 / 5

Submitted

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

15 years ago | 1 download |

0.0 / 5

Submitted

findNearest algorithm
This algorithm sees if data you are searching for is in x and if not it shows the closest value

15 years ago | 1 download |

4.5 / 5