Amazing ideas + Tech oriented implementation = Development of my country.

I am enthusiastic about recent developments in the IT industry and FOSS. I consider myself a patriot and an avid newspaper reader.

Blogging at -> https://sidshenoy.github.io/

Solved

Find MPG of Lightest Cars

The file |cars.mat| contains a table named |cars| with variables |Model|, |MPG|, |Horsepower|, |Weight|, and |Acceleration| for ...

2 months ago

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Calculate Inner Product

Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...

2 months ago

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Rescale Scores

Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...

2 months ago

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Longest run of consecutive numbers

Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 1 ...

2 months ago

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Crop an Image

A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...

2 months ago

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Calculate BMI

Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

2 months ago

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Calculate a Damped Sinusoid

The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

2 months ago

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Solve a System of Linear Equations

*Example*: If a system of linear equations in _x₁_ and _x₂_ is: 2 _x₁_ + _x₂_ = 2 _x₁...

2 months ago

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Convert from Fahrenheit to Celsius

Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

2 months ago

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Special matrix

Make a square matrix with this shape. For n=4 M = 1 1 0 0 1 0 1 0 0 1 0 ...

1 year ago

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The maximum sum of squares (testing)

Create a function file with an input maxval to determine the maximum number of terms for the series 1^2 + 2^2 + 3^2 + ... such t...

1 year ago

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Perfect square.

Determine if the input is a perfect square or not. Example - If input is 25, return 1. If input is 17, return 0.

1 year ago

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how many of the entries are positive?

Given x= sin(linspace(0,10*pi,100)), how many of the entries are positive?

1 year ago

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Calculate vowel / consonant ratio of a string

Given a string, calculate the ratio of vowels to consonants for example : x = 'This is a very good Day!' y = 7/11

1 year ago

Problem

Angle between two vectors

Given 2 pairs of _cartesian co-ordinates_, determine the angle between the 2 vectors formed by the _points_ and the _origin_. An...

1 year ago | 0

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Cube root of max value in a vector

Find the cube root of the maximum value in a vector

1 year ago

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Add consecutive integer numbers

Given consecutive numbers, add the numbers *without using the sum command in MATLAB.*

1 year ago

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Add 3 numbers

In this problem, you have to add three numbers a, b and c. Give output d = add(a,b,c)

1 year ago

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Double the next!

Given two numbers, m and n, find a matrix m x n where each element value is twice the value of the previous element. Starting fr...

1 year ago

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Just another sum (JAS)

*Task:* Write a function that takes a vector X and returns the alternating sum of X: X(1)-X(2)+X(3)-X(4)+... *Example...

1 year ago

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Calculate the square of a number (Super Easy)

The goal is to calculate the square (y) of a number (x). Good way to start MatLab for beginners.

1 year ago

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How to find the position of an element in a vector without using the find function

Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

1 year ago

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The Hitchhiker's Guide to MATLAB

Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

1 year ago

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Return the 3n+1 sequence for n

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

1 year ago

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Simple equation: Annual salary

Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

1 year ago

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Back and Forth Rows

Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

1 year ago

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Weighted average

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

1 year ago