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Cris LaPierre


MathWorks

431 total contributions since 2018

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Solved


Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

4 Tage ago

Solved


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

4 Tage ago

Solved


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.

4 Tage ago

Solved


Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

4 Tage 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 Tage 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...

4 Tage 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...

4 Tage 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 Tage ago

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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 Tage 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 Tage ago

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Is my wife right?
Regardless of input, output the string 'yes'.

4 Tage 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 Tage ago

Solved


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

4 Tage ago

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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 Tage ago

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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 Tage ago

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

4 Tage ago

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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 Tage 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 Tage 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 Tage ago

Answered
Is there a catalog of pre-made problems available within MATLAB Grader?
In addition to the example problems (in a collection called Getting Starting with MATLAB Grader), the Introduction to Programmin...

etwa ein Monat ago | 0

Answered
Cleaning of large files of data
Consider looking through this example in MATLAB. It might give you some ideas of how to handle the missing data.

etwa ein Monat ago | 1

Answered
Grader: Your code could not run to completion. Check for errors in the code such as infinite recursion.
There is not currently a way to extend the time limit. All computation, including running the reference solution, student soluti...

etwa 2 Monate ago | 1

Answered
Graphical User Interface (GUI) in Matlab 2019a version.
In the command window, type appdesigner

2 Monate ago | 0

Answered
How can I exclude index values that are not present in all columns of a matrix?
Where your data is sorted in ascending order and, at least after a cursory examination of the data, no values are duplicated in ...

2 Monate ago | 0

Answered
Problem with contourf for scattered data
I didn't look into what is causing it, but inspecting Z has me thinking it might be roundoff error. Your Z values in this region...

2 Monate ago | 0

| accepted

Answered
Too long for installation
You can try the installation self help. If you still can't find a solution, create a technical support service request here.

2 Monate ago | 0

Answered
help with matlab error
It looks like your teacher is using MATLAB Grader for this problem. Because of variable scope in a function, MATLAB Grader is ca...

2 Monate ago | 0

Answered
What Matlab products should I buy as a student?
I think the link you want to look at is this: https://www.mathworks.com/store If you need help selecting the products you need...

2 Monate ago | 1

| accepted

Answered
Is there a way of creating a code so every time you save a figure as .mat it automatically also saves it as .bmp?
There is code you can add to your script/function so that once a figure has been created, it will save it. This is done with t...

3 Monate ago | 0

Answered
too many input argument while plotting date and time
Not sure exactly what your desired outcome is. However, why not use readtable, which loads your data into a table? It can handle...

3 Monate ago | 0

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