# Jarhed Szalkowski

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**Feeds**

Solved

Finding perimeter of a rectangle

A rectangle has a length of x centimeters and a width of w centimeters. Find the perimeter.

5 years ago

Solved

Create a square matrix of multiples

Given an input, N, output a matrix N x N with each row containing multiples of the first element of each row. This also applies...

5 years ago

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Divide by 4

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

5 years 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...

5 years ago

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Triangle sequence

A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

5 years ago

Solved

Length of a short side

Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

5 years ago

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Area of an Isoceles Triangle

An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...

5 years ago

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Find a Pythagorean triple

Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

5 years ago

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Sum of diagonal of a square matrix

If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

5 years ago

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Return median of a matrix

Compute median of a matrix of any dimension. Exclude the NaNs if any.

5 years ago

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Product of all elements in an array

Compute the product of all elements in an array.

5 years ago

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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...

5 years ago

Solved

Solve equation numerically

y'=y In order to solve equation using computer, numerical analysis are needed. 1st order Euler's method is one of the metho...

5 years ago

Solved

How many ways to write a number

Given two positive numbers n and k, where n>=k. In how many ways can we write n as sum of k positive numbers. Same numbers but d...

5 years ago

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The answer to life the universe and everything

Write a function that gives the answer to life the universe and everything to every input except the input is 42. In this case t...

5 years ago

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Kinetic Energy

Given mass, m, and kinetic energy, KE, find the velocity of the object.

5 years ago

Solved

Solve expression I

Solve expression (1+sin(x))/cos(x)+cos(x)/(1+sin(x)) for given vector x.

5 years ago

Solved

Calculate some equation

Using given inputs x and z, make two outputs that are y1 = (xz)/(x/z)^2 + 14x^2 - 0.8z^2 y2 = x^z - z^x + (x/z)^2 - (z/x...

5 years ago

Solved

How to calculate log?

There is a log that have base 5. How to calculate? log5(x)?

5 years ago

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Print true if

all elements are larger than 5 a=[1 3 5 8 6]; b=[6 6 6 6 6]; function(a) should be false, and function(b) will be tru...

5 years ago

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Was ist denn los?

Nur für deutschsprechende Leute! Wie geht's? ...also gut, bis bald!

5 years ago

Solved

Summation of array

Given an array, Find the sum of all of the elements in it Examples: Input x = [1 2 3 5; 4 5 6 7]; Output y is 33

5 years ago

Solved

How many jokers?

* Given DNA codes of a group of suspects, * and a code for certain types of jokers, * Count how many jokers of that type. * ...

5 years ago

Solved

Back to basics 11 - Max Integer

Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive integer MATLAB can handle.

5 years ago

Solved

Add two numbers

Calculate the sum of two numbers. Example input = [2 3] output = 5

5 years ago

Solved

surface of a spherical planet

you just discovered its circumference, that is the input.

5 years ago