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Chris Hooper


Last seen: Today |  Active since 2016

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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...

2 maanden 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. ...

2 maanden ago | 2 answers | 0

2

answers

Question


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...

9 maanden ago | 1 answer | 0

1

answer

Question


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...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Submitted


Matlab and Excel: read and write
read and write data between matlab and excel

meer dan 3 jaar ago | 1 download |

Answered
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...

meer dan 5 jaar 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...

ongeveer 6 jaar ago | 2 answers | 0

2

answers

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...

bijna 8 jaar 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.

bijna 8 jaar ago

Solved


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

bijna 8 jaar 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...

bijna 8 jaar ago

Submitted


mdof
time domain system multiple dof spring mass damper force

meer dan 8 jaar ago | 1 download |

Answered
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 ...

meer dan 8 jaar ago | 0