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Neeraj Rajpurohit


Last seen: 4 years ago |  Active since 2020

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

4 years ago

Answered
Cannot connect to mongoDB (version 4.2.6, authentification error)
Hi, This is a problem I encountered as well. The problem occurs becuae the database name is not being set in the mongo.m class....

4 years ago | 0

Answered
Matrix Array Reshaping by fixed columns
Hi, I think reshape(arr, [], columnSize) would reshare the array with number of columns as coulmnSize in each row, which is 2...

4 years ago | 0

Solved


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...

4 years ago

Solved


Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

4 years ago

Solved


Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

4 years ago

Solved


Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

4 years ago

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

4 years ago

Answered
How do I connect Matlab to MongoDB Atlas?
Hi, Jasmine's answer here would work in my opinion. However, for best experience, I would recommend you to go with the version ...

4 years ago | 0

Answered
What is the variable 'self' in MATLAB class?
As Daniel has rightly written, obj is usually writtern instead of 'self' in definition of methods in MATLAB classes. If the fu...

4 years ago | 0

Solved


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...

4 years ago

Solved


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...

4 years ago

Solved


Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

4 years ago

Solved


Add two numbers
Given a and b, return the sum a+b in c.

4 years ago

Solved


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; ...

4 years ago

Answered
'Access-Control-Allow-Origin'
Hi, In my opinion this is because you are accessing the API from a file. You will need to apply different solutions to differen...

4 years ago | 0

Answered
Run a loop on struct field
Hi, You can use the below mentioned command to get a string array of all the fields in a struct s. fields = string(fieldnames(...

4 years ago | 0

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Answered
Extract info from .json file by matlab
fileName = 'filename.json'; % filename in JSON extension fid = fopen(fileName); % Opening the file raw = fread(fid,inf); % R...

4 years ago | 7

Solved


The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

4 years ago

Solved


Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

4 years ago

Solved


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...

4 years ago

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

4 years ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

4 years ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

4 years ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

4 years ago

Answered
How can I POST JSON arguments (Request Payload) using MATLAB's webwrite?
The error code here is 415, which means unsupported media type. The server is not being able to identify the request type. I see...

4 years ago | 0