MATLAB Central Discussions - Join the conversation!
Hauptinhalt

Results for


Cody is a useful tool to practice MATLAB skills not only by solving the problems but also learn from each other’s solutions. Sometimes you see subpar solutions that are cheats and hacks. With the flagging feature we released recently, you can help us identify solutions that administrators, including Community Advisory Board members, can review and delete.

How to flag?

Flag Options - Only available on solutions

Skiing
35%
Skating (including hockey)
21%
Sledding (luge, bobsled, etc.)
10%
Curling
19%
Biathlon (skiing + shooting)
15%
640 Stimmen
MATLAB (Way to go!!! You rock!)
49%
Python (not from within MATLAB)
29%
Any variation of C
12%
Java, Javascript
4%
R, Ruby, Swift, Go, Scala, PHP, VB
2%
Other not mentioned, or mixture
4%
10577 Stimmen
Ambient | Atmospheric | Nature
9%
Classical | Jazz | Musicals
10%
Electronic | Dubstep | House | VGM
15%
Lo-fi | Chill | Coffee House
22%
Rock | Metal | Pop | Punk | Hip Hop
27%
Other | Podcasts | Nothing
17%
753 Stimmen
I only use it for homework problems
22%
1
5%
2-10
24%
10-100
28%
More than 100
12%
None yet (just started learning)
9%
6646 Stimmen
1 (just me)
8%
2-10
9%
11-100
8%
More than 100 (e.g. University)
65%
I can't even guess.
9%
8483 Stimmen
1 monitor/screen
42%
2
46%
3
9%
4 or more
3%
12173 Stimmen
Windows
74%
Apple, Mac, iPad
13%
Android (MATLAB Online)
4%
iPhone (MATLAB Online)
1%
Unix, Linux, Ubuntu, etc.
6%
11570 Stimmen

Every day, thousands of people ask questions on MATLAB Answers and many of these are about their code. Questions such as “How can I make this faster?”, “Why do I get this error message?” or “Why don’t I get the answer I expect?”. There’s often one crucial thing missing though – the code in question!

Most of the people who answer questions on MATLAB Answers are volunteers from the community. They are answering your questions for fun, to learn more about MATLAB or just because they like to be helpful. This is even true for people such as me who are MathWorks members of staff. It’s not part of my role to patrol the community, looking where I can help out. I do it because I like to do it.

Make it easier to help me help you.

Imagine you’re a volunteer, looking for something interesting to answer. What kind of questions are you more likely to dig into and help an anonymous stranger figure out?

In my case, I almost always focus on problems that I can easily reproduce. I rarely know the answer to any question off the top of my head and so what I like to do is start off with the problem you are facing and use the various tools available to me such as the profiler or debugger to figure it out. This is the fun of it all for me – I almost always learn something by doing this and you get helped out as a side effect!

The easier I can reproduce your issue, the more likely I am to get started. If I can’t reproduce anything and the answer isn’t immediately obvious to me I’ll just move onto the next question. One example that demonstrates this perfectly is a case where someone’s MATLAB code was running too slowly. All of the code was available so I could run it on my machine, profile it and provide a speed-up of almost 150x.

It's not always feasible or desirable to post all of your code in which case you need to come up with a minimal, reproducible example. What’s the smallest amount of code and data you can post that I can run on my machine and see what you see? This may be more work for you but it will greatly increase your chances of receiving an answer to your question.

General web search
75%
Specific web search for MLC content
12%
I search directly within MLC
3%
Combination of choices 2 & 3
9%
Neither (please leave a comment)
1%
813 Stimmen
I'm trying to solve one problem in Cody, but a function 'fmincon' is not recognized by the online compiler. Is there any way to use functions in optimization toolbox in Cody?
My school supplies me as a student
63%
School bought it (prof, staff,etc.)
10%
I bought my own (student, home, etc
5%
My company/gov't/organization
17%
I'm using a free trial right now.
4%
Gift from someone (e.g. Mathworks)
1%
17288 Stimmen
Less than 1 hour
17%
1-2 hours
17%
2-3 hours
16%
3-4 hours
14%
More than 4 hours per day
36%
1174 Stimmen
Image Analyst
Image Analyst
Last activity am 7 Apr. 2022

White and gold
32%
Blue and black
42%
I can see it both ways, depending
16%
Not sure or something else/neither
10%
419 Stimmen
English
38%
Other European language
20%
East Asian (Chinese, etc.)
11%
Indian (any)
12%
Spanish
5%
Other (Arabic, etc.)
14%
1117 Stimmen
Within the past year
24%
1 - 5 years ago
38%
5.01 - 10 years ago
17%
10.01 - 21 years ago
12%
During the last century (1900's)
8%
1300 Stimmen
A full prof. version w/all TB's
30%
A toolbox (TB) you don't have yet
6%
MATLAB swag (t-shirt, cap, mug,etc)
30%
Vacation at Cleve's in Arizona
12%
Full web site moderator privileges
2%
Free training class
20%
972 Stimmen
R2021b (latest official release)
35%
R2020a - R2021a
30%
R2018a - R2019b
17%
R2016a - R2017b
9%
R2015b or earlier
8%
4244 Stimmen
Satellite Communications Toolbox
53%
Mapping Toolbox
9%
Signal Processing Toolbox
14%
Navigation Toolbox
19%
Other (Explain in comments)
4%
2403 Stimmen

In the past 2 months, we had a lot of fun together playing in the two contests. To make future contests better and more appealing to you, we created a 1-minute survey to understand your experience.

Your feedback is critical to us. Thank you in advance and hope to see you in 2022!

Go to top of page