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Andrianna Ayiotis


Last seen: 4 días ago
54 total contributions since 2018

PhD Candidate in Biomedical Engineering at Johns Hopkins University and avid MATLAB user.

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Right Triangle Side Lengths (Inspired by Project Euler Problem 39)
If _p_ is the perimeter of a right angle triangle with integral length sides, { _a_, _b_, _c_ }, there are exactly three solutio...

alrededor de 1 mes ago

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Find my daddy long leg (No 's')
Given the ratio of the two legs (longer / shorter), and the hypotenuse length, find the value of the bigger leg.

alrededor de 1 mes ago

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Scoring for oriented dominoes
Given a list of ordered pairs, and the order they should be placed in a line, find the sum of the absolute values of the differe...

alrededor de 1 mes ago

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Find the starting index of a consecutive condition
Given a logical vector |v|, and a positive integer |n|, return the smallest index |i| that satisfies: all( v(i : i+n-1) ) =...

alrededor de 1 mes ago

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Sum the entries of each column of a matrix which satisfy a logical condition.
Given a numeric matrix A and a logical array L of the same size as A, return a row vector S containing the columnwise sums of th...

alrededor de 1 mes ago

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Calculate the area of a triangle between three points
Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...

alrededor de 1 mes ago

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Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

alrededor de 1 mes ago

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Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

alrededor de 1 mes ago

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Create a vector
Create a vector from 0 to n by intervals of 2.

alrededor de 1 mes ago

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Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

alrededor de 1 mes ago

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Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

alrededor de 1 mes ago

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Find max
Find the maximum value of a given vector or matrix.

alrededor de 1 mes ago

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Get the length of a given vector
Given a vector x, the output y should equal the length of x.

alrededor de 1 mes ago

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Inner product of two vectors
Find the inner product of two vectors.

alrededor de 1 mes ago

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Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

alrededor de 1 mes ago

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Knights and Knaves (part 3)
_This is a Matlab adaptation of the_ <http://en.wikipedia.org/wiki/Knights_and_Knaves Knights and Knaves> _logical puzzles_. ...

alrededor de 1 mes ago

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Knights and Knaves (part 2)
_This is a Matlab adaptation of the_ <http://en.wikipedia.org/wiki/Knights_and_Knaves Knights and Knaves> _logical puzzles_. ...

alrededor de 1 mes ago

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Knights and Knaves (part 1)
This is a Matlab adaptation of the <http://en.wikipedia.org/wiki/Knights_and_Knaves Knights and Knaves> logical puzzles. You ...

alrededor de 1 mes ago

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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.

alrededor de 1 mes ago

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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.

alrededor de 1 mes ago

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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...

alrededor de 1 mes ago

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

alrededor de 1 mes ago

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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...

alrededor de 1 mes ago

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

alrededor de 1 mes ago

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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...

alrededor de 1 mes ago

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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....

alrededor de 1 mes ago

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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...

alrededor de 1 mes ago

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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,...

alrededor de 1 mes ago

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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...

alrededor de 1 mes ago

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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 = ...

alrededor de 1 mes ago

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