Mechanical Engineering, IIT Guwahati

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calculate PI without using pi function

There are many methods to get the pi(Ratio of circumference to diameter). You should get pi without using the pi function in M...

1 month ago

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Split a string into chunks of specified length

Given a string and a vector of integers, break the string into chunks whose lengths are given by the elements of the vector. Ex...

3 months ago

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Project Euler: Problem 4, Palindromic numbers

A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 ...

3 months ago

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Project Euler: Problem 8, Find largest product in a large string of numbers

Find the greatest product of five consecutive digits in an n-digit number. 73167176531330624919225119674426574742355349194934...

3 months ago

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Project Euler: Problem 5, Smallest multiple

2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smalle...

3 months ago

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How many bottles can you drink?

Sometimes if you buy a drink in a glass bottle you can return that bottle and get some money back. Let's assume we have "x" a...

3 months ago

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Generate a random matrix A of (1,-1)

Input n: is an positive integer which serves as the dimension of the matrix A; Output: A=(Aij),where each entry Aij is either...

3 months ago

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Moving average (variable kernel length)

Find the moving average in a vector. The kernel length is a variable. For example x = 1:10 kernel_length = 2 would r...

3 months ago

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Vector of numbers divisible by 3

* Input(n) - any integer * Output(v) - vector with numbers divisible by 3(exept 0) starting from n to 0 Examples: * n=6...

3 months ago

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Summing Rows and Columns

Create a matrix y of size (n+1) whose last column's elements are the summation of the elements of all the other columns and last...

3 months ago

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Change the sign of even index entries of the reversed vector

change the signs of the even index entries of the reversed vector example 1 vec = [4 -1 -2 9] ans = [9 2 -1 -4] example2...

3 months ago

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Divisors of an integer

Given a number N, return a vector V of all integers that divide N. For example, N = 10 Then V=[1 2 5 10]

3 months ago

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Generate this matrix

Generate the following matrix. n = 2; out = [-4 -3 -2 -1 0 -3 -2 -1 0 1 -...

3 months ago

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Delete 2nd and 5th column of Given 6*6 matrix

Delete the 2nd and 5th columns of the given 6*6 matrix. Example Suppose A = magic(6) 35 1 6 26 19 ...

3 months ago

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Cell Counting: How Many Draws?

You are given a cell array containing information about a number of soccer games. Each cell contains one of the following: * ...

3 months ago

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Create a cell array out of a struct

Create a cell array out of a (single) struct with the fieldname in the first column and the value in the second column: in: ...

3 months ago

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Find nearest prime number less than input number

Find nearest prime number less than input number. For example: if the input number is 125, then the nearest prime number whi...

3 months ago

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generate the matrix

given a value n (say 4) - generate the matrix like below y= [0 1 2 3 4; -1 0 1 2 ...

3 months ago

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Finding an element in a vector

x is a vector of unknown length your function should return the index of the first element in the vector that is greater than...

3 months ago

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NO _________ ALLOWED....

So you're given a sentence where if there is a particular word in the sentence then the output is 1, if it is not there then the...

3 months ago

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String Array Basics, Part 2: Convert String Array to Cell Array; No Missing Values

<http://www.mathworks.com/help/matlab/characters-and-strings.html String array> and cell array are two types of containers for s...

3 months ago

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String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values

<http://www.mathworks.com/help/matlab/characters-and-strings.html String array> and cell array are two types of containers for s...

3 months ago

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Convert a numerical matrix into a cell array of strings

Given a numerical matrix, output a *cell array of string*. For example: if input = 1:3 output is {'1','2','3'} whic...

3 months ago

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Fix the last element of a cell array

Note: this is lifted directly from <http://www.mathworks.com/matlabcentral/answers/82825-puzzler-for-a-monday Puzzler for a Mond...

3 months ago

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Shift elements of vector left

Shift elements of vector to the left. For ex. : Input_vec = [1 2 3 4 5] Output_vec = [2 3 4 5 1]

3 months ago

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Circumscribed circles

Given the lengths of the 3 sides of a triangle, output the radius of the circumscribed circle. Example: [3 4 5] -> 2.5

3 months ago

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Basic electricity in a dry situation

⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ ⚡ &#...

3 months ago

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Back to basics 12 - Input Arguments

Covering some basic topics I haven't seen elsewhere on Cody. Return a value equal to the number of input arguments to the fun...

3 months ago

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Change matrix to vector

Vector is a matrix whose size is 1 x n or n x 1. Change matrix to vector. x = 4 3 5 1 ...

3 months ago

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given number is power of n or not?

Check weather The input is power of n or not? for example x=8,n=2 --> true x=6,n=2 --> false

3 months ago