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Question
how to deal with discontinuities in solutions to differential equations using ode45
Motivation: I am trying to learn how to use ode45 for fun after studying some math (because it seems engineering eventually make...
7 months ago | 2 answers | 0
2
answersSolved
Given the mass and stiffness of an undamped SDOF system, find the natural frequency and the natural period of vibration
Problem Statement Given the mass and stiffness of an undamped SDOF system, find the system's natural frequency in both Hz and...
1 year ago
Question
How do I reduce categorical array containing alternate spellings and formats?
I bet this problem comes up all the time: I have a categorical array of length ~ 10,000 and typical string length ~ 10 to 20. ...
1 year ago | 2 answers | 0
2
answersQuestion
Is it possible to zip files one directory up with "zip"
This creates file1.zip containing file2 and file3: zip('file1',{'file2','file3'}) However, this creates file1.zip containing n...
1 year ago | 1 answer | 0
1
answerQuestion
datenum(year,month,day,hr) that returns integer
I need a datenum(year,month,day,hr) that returns an integer, where year, month, day, and hr are vectors of integers. motivation...
3 years ago | 1 answer | 0
1
answerSubmitted
Matlab and Excel: read and write
read and write data between matlab and excel
4 years ago | 1 download |
Excel custom properties Add function - Invoke Error: Incorrect number of arguments
I am very interested in this as well. I am trying to use optional arguments for the Range.Find() method in order to specify tha...
6 years ago | 0
Question
interesting matrix indexing question without for loops
size(matrixA)=[b,n,m] size(matrixB)=[n,m] how can I create matrixC(i,j)=matrixA(matrixB(i,j),i,j) without using...
7 years ago | 2 answers | 0
2
answersSolved
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...
8 years 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.
8 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...
8 years ago
64 Bit version of Matlab 2015a a lot slower than 32bit version
Did you try running the benchmarks multiple alternating times to avoid the order effect? running a matlab code is often slowest ...
9 years ago | 0
