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MATLAB 101: Count the Evens
Write a MATLAB function that accepts an array of integers and returns the total count of even numbers present in the array. Note...

3 days ago

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MATLAB 101: Lucas Sequence
The Lucas sequence follows the same additive rule as Fibonacci, but starts with 2 and 1. Sequence: 2, 1, 3, 4, 7, 11, 18, 29, 47...

3 days ago

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MATLAB 101: Extract the prime numbers
Given a list of elements, extract the prime numbers from that array.

3 days ago

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MATLAB 101: Armstrong Number
Write a function name armstrong_check that checks whether the given input is an Armstrong Number or not. It returns logical True...

3 days ago

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MATLAB 101: Extracting Even/Odd Values
Given an array or a matrix, extract all elements that satisfy a specified parity condition ('even' or 'odd') and return them as ...

3 days ago

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MATLAB 101: Replace Negatives with Zero
Write a MATLAB function that takes a numeric array (vector or matrix) of numbers and replaces all negative numbers with zero. Po...

3 days ago

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MATLAB 101: Area of an ellipse
Write a MATLAB function that accepts these two values a (major axis length), b (minor axis length) as inputs and returns the cal...

3 days ago

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MATLAB 101: Area of a circle
Write a MATLAB function named circle_area that accepts the radius r as an input and returns the area of the circle.

3 days ago

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MATLAB 101: Hypotenuse Calculator
Write a MATLAB function that accepts the base and height of a right-angled triangle (or arrays of bases and heights) and returns...

3 days ago

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MATLAB 101: Basic Calculator
Write a MATLAB function named basic_calculator that accepts two input numbers, A and B, and returns four distinct outputs: The ...

3 days ago

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Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<https://i.imgur.com/jlZDHhq.png>> Image courtesy of <http://up...

3 days ago

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Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<https://imgur.com/x6hT6mm.png>> ...

3 days 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. <<https://imgur...

3 days 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 second...

3 days ago

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Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

3 days ago

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Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

3 days 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...

3 days ago

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Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return true if the triangle with sides a, b and c is right-...

3 days ago

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Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? Image courtesy of Wikipedia.

3 days ago

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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...

3 days ago

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Linear Motion 1
An object travels N feet in the first second of travel, N feet again during the second second of travel and N feet again during ...

13 days 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.

13 days 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.

13 days 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...

13 days 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...

13 days 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...

13 days 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 find the logical indices o...

13 days 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...

13 days 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 = [1,2,3]; Returns 1.

13 days 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...

13 days ago