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# Jesús Zambrano

### MathWorks

315 total contributions since 2018

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Change matrix to vector2
From x = 4 3 5 1 5 1 To y = 4 3 5 1 ...

4 maanden ago

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Cumulative product of a vector
Cumulative product of a vector example x=[1 2 5 10], then answer must be [ 1 2 10 100] *If you like this prob...

4 maanden ago

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Extract a specific part of matrix!
In the given matrix, extract element that have odd rows and column number. For example A=[1 4 2 3 5] B=extractodd(A);...

4 maanden ago

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Rotate Matrix Depending on the input
Rotate matrix (CounterClockwise) via 90, 180 or -90 depending on the input Ex. a = [1 2 3; 4 5 6; 7 8 9] b = 90; ...

4 maanden ago

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Create tangent function out of sine function only
Please don't use cosine and tangent functions

4 maanden ago

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Create tangent function out of cosine only
Please don't use tangent and sine functions

4 maanden ago

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Create sine function out of cosine

4 maanden ago

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What's size of TV?
Many people buy TV. Usually they ask about diagonal. But also important are width and height. Let's assume that all TV have rati...

4 maanden ago

fsolve problem
You can try with the function solve. For example, to force getting real solutions: syms x eqn = x^5 == 3125; solve(eqn, x) %...

4 maanden ago | 0

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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...

4 maanden ago

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Love triangles
Given a vector of lengths [a b c], determines whether a triangle with non-zero area (in two-dimensional Euclidean space, smarty!...

4 maanden ago

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Find the area of a triangle
Given a triangle with a base b and height h, return the triangle area.

4 maanden ago

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Area of a circle
Given the radius x, y would be the area of a circle. Pi = 3.1416

4 maanden ago

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Replacing a row
For matrix G=[1 2 3; 4 5 6; 7 8 9] Replace the 2nd row with 8s **remember to create matrix G

4 maanden ago

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Matlab Basics II - Free Fall
An object freely falling from rest under gravity covers a distance x given by: x = 1/2 gt^2 write a function that calculat...

4 maanden ago

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Remove the Zero
Given an array n, remove all zeros

4 maanden ago

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Ratio between sum of primer numbers and non-prime numbers
Write a function that calculates the ratio between the sum of the prime numbers lower or equal than x, and the sum of the non-pr...

4 maanden ago

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Ratio between sum of primes and sum of factors
Write a function that calculates the ratio between the sum of primes numbers lower or equal to x, and the sum of the factors of ...

4 maanden ago

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07 - Common functions and indexing 6
Create a variable _m_ as a magic square with the size 6 x 6 Magic squares are defined as square matrices, where the sum of a...

4 maanden ago

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Return unique values without sorting
If the input vector A is [42 1 1], the output value B must be the unique values [42 1] The *values of B are in the s...

4 maanden ago

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Returning a "greater than" vector
Given a vector, v, return a new vector , vNew, containing only values > n. For example: v=[1 2 3 4 5 6] n=3 vNew =...

4 maanden ago

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Back to basics 7 - Equal NaNs
Covering some basic topics I haven't seen elsewhere on Cody. Given 2 input variables, output true if they are equal, false ot...

4 maanden ago

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Easy problem
This is an easy problem. Just click on submit.

4 maanden ago

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

4 maanden ago

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Test Problem; Create a 5x5 array containing all ones
This is a test for learning the process of creating a Cody problem. The goal of this test problem will be to create an array,...

4 maanden ago

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Sum of Two Numbers
Given two integer numbers x and y, calculate their sum and put it in z. Examples: Inputs x = 2, y = 4 Output z is 6 ...

4 maanden ago

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matrix of natural number
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 resides seially as shown in the examples below. ...

4 maanden ago

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y equals x divided by 2
function y = x/2

4 maanden ago

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Swap two numbers
Example Input: a = 10 b = 20 Output a = 20 b = 10

4 maanden ago

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Sphenic number sequence
<http://oeis.org/A007304 Sphenic numbers> are positive integers that are products of three distinct prime numbers: 30, 42, 66, 7...

4 maanden ago