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What is my License number?
You should contact <https://www.mathworks.com/support/contact_us/index.html?s_tid=contact_us_support_cust_serv MathWorks Support...

10年弱前 | 0

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Does anyone know to convert clock time into decimal time?
# Use <https://www.mathworks.com/help/matlab/ref/num2str.html |num2str|> # Lop off the last two characters with |a(end-1:en...

10年弱前 | 0

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Who can help me with defining a regular expression?
str1 = '@5%'; str2 = '@2.5%'; regex = '\d*\.?\d+'; [s1 e1] = regexp(str1, regex); [s2 e2] = regexp(str2, regex); ...

10年弱前 | 0

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How to do a binarization of this image?
Take a look at <https://www.mathworks.com/help/images/image-enhancement-and-analysis.html this example> and <https://www.mathwor...

10年弱前 | 0

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*.dat file reader
<https://www.mathworks.com/help/matlab/ref/readtable.html |readtable()|> should do it. Take a look at |'HeaderLines'| if needed....

10年弱前 | 0

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how can i recrord a video from webcam using matlab ?
You can use the <https://www.mathworks.com/products/imaq/features.html#app-for-image-and-video-acquisition Image Acquisition Too...

10年弱前 | 0

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Plot data from 2 different files in the same folder
It doesn't matter what files the data is in. You need to load the data and run the associated plotting commands.

10年弱前 | 0

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Hi, i need to find out the eigenvalues of a 8000x8000 matrix system by eig() function of matlab?? may i know the normal simulation time of the eig() function of such a huge matrix in MATLAB?
It's going to depend on the matrix, correct? Running a simulation on my machine (Surface Pro3) I was able to modify the examp...

10年弱前 | 0

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How to find multiple min values and index them for a FOR loop
The first thing I would do is find what the minimum value is. You can do this by using the <https://www.mathworks.com/help/matla...

10年弱前 | 0

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Re: find()
From what I can tell in the <https://www.mathworks.com/help/matlab/ref/find.html#budqvnh-1 |find|> documentation the answer is y...

10年弱前 | 0

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How to convert xml to excel sheet...?
Use <http://www.mathworks.com/help/matlab/import_export/importing-xml-documents.html |xmlread|> to import your data and <http://...

10年弱前 | 0

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Who is the smartest MATLAB programmer?
Who is the smartest MATLAB programmer? Examples: Input x = 'Is it Obama?' Output = 'Me!' Input x = 'Who ?' Ou...

10年弱前

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Get the length of a given vector
Given a vector x, the output y should equal the length of x.

10年弱前

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Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

10年弱前

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download data from a web page
Use <http://www.mathworks.com/help/matlab/ref/webread.html webread>

10年弱前 | 0

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Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

10年弱前

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Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...

10年弱前

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Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...

10年弱前

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Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

10年弱前

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Back to basics 8 - Matrix Diagonals
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector of numbers, output a square array with the...

10年弱前

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Trimming Spaces
Given a string, remove all leading and trailing spaces (where space is defined as ASCII 32). Input a = ' singular value deco...

10年弱前

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Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

10年弱前

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Back to basics 6 - Column Vector
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...

10年弱前

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Write a function (Not a built-in function) that converts a given number n in base 2 to base 10
There's a builtin function called bin2dec which turns a binary string into a decimal number. So if you convert the data into a s...

10年弱前 | 0

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How to set different colors for the text in a legend ?
Use TeX formatting to set the colors. x = -pi:pi/20:pi; y1 = sin(x); y2 = cos(x); plot(x,y1,'-ro',x,y2,'-.b'); ...

10年弱前 | 4

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Writing a result on an existing table?
Are you using matrices or tables? It's not completely clear to me in your post. If it's a matrix you can do the calculation and...

10年弱前 | 0

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inner product of two vectors
inner product of two vectors

10年弱前

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How to read\open a csv file with millions of rows and hundreds of coloumns to compare/delete and save
You can do this with <https://www.mathworks.com/help/matlab/ref/textscan.html textscan>, but your <https://www.mathworks.com/hel...

10年弱前 | 0

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How can i Delete columns from many csv files?
You can use <https://www.mathworks.com/help/matlab/import_export/what-is-a-datastore.html datastore()> to read the files and the...

10年弱前 | 0

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Hi, how can i import data from many worksheet in Excel? Can i used a cicle for?please help me
You're trying to use i as your loop index. (Conventionally ii would be used to avoid confusion with <https://www.mathworks.com/h...

10年弱前 | 0