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Chris Hooper


Last seen: 1 day 前 |  自 2016 起处于活动状态

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统计学

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已解决


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 months 前

提问


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 months 前 | 2 个回答 | 0

2

个回答

提问


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 months 前 | 1 个回答 | 0

1

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提问


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...

2 years 前 | 1 个回答 | 0

1

个回答

已提交


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

3 years 前 | 1 次下载 |

已回答
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...

5 years 前 | 0

提问


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...

6 years 前 | 2 个回答 | 0

2

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已解决


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 前

已解决


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 前

已解决


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

8 years 前

已解决


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 前

已提交


mdof
time domain system multiple dof spring mass damper force

8 years 前 | 1 次下载 |

已回答
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 ...

8 years 前 | 0