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Matthew


University of Akron

2014 年からアクティブ

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Professional Interests: Mechanical Engineering

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質問


How To Remove Repeating Pattern From Vector
Suppose I have a vector that looks like this: x=[1;1;1;1;2;2;2;2;3;3;3;3;4;4;4;4;5;5;5;5;6;6;6;6;7;7;7;7;8;8;8;8;9;9;9;9] You ...

5年以上 前 | 1 件の回答 | 0

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質問


MaxHeadSize Inoperable in R2017a for Quiver3
I'm trying to change the arrow head size for a quiver3 plot. I'm using R2017a. 'MaxHeadSize' doesn't seem to change it though....

6年弱 前 | 0 件の回答 | 0

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質問


How Are Calculations Done for Variable That's Inclusive of Itself?
Consider the following simple scenario: x=x+1 In terms of computational efficiency and speed, I'm curious how this calcu...

7年弱 前 | 2 件の回答 | 0

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質問


Parallel Computing Hardware Setting
I wrote a script that takes hours to run. I opened the Task Manager and noticed it appears to be using all the CPUs. By defaul...

7年弱 前 | 1 件の回答 | 0

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質問


Indexing Vector of Variables
I have a column vector of numbers (we'll call it A for example). Is there a slick way to go through A and create another column...

約7年 前 | 1 件の回答 | 0

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質問


Plot File Naming Prohibits Periods?
In order to save my plot, I have this excerpt of code at the end of my script. Why does this not work? From my debugging, it s...

約7年 前 | 1 件の回答 | 0

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質問


How To Write Long Plot Handle
My code has the plot handle shown below that is used with 'plot3.' Seventeen different data sets (i.e., n=17) are being plotted...

約7年 前 | 1 件の回答 | 0

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質問


Change Array Name In Each Loop
I'm writing a For loop and want to create an array each loop, with the name changed according to the loop counter; e.g., Coll1, ...

約7年 前 | 2 件の回答 | 0

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質問


Creating Coordinate Point List of Sphere's Surface Areas (Geodesic Grid)
Imagine a geodesic grid of a sphere. The sphere's surface is evenly discretized into many equal-area surfaces. Suppose I wante...

約7年 前 | 0 件の回答 | 0

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質問


Create Array Within Array
I need to create an array. Within that array, each cell of the array is a numerical array unto itself (i.e., child arrays withi...

約7年 前 | 1 件の回答 | 0

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ode45 to Solve System of ODEs
Anybody else have some input on how to construct this scenario? There were some aspects to James' answer that weren't clear to ...

約7年 前 | 0

質問


ode45 to Solve System of ODEs
Please see the two equations in the attachment. When Eqn 1 is integrated, it will report velocity. Similarly, when Eqn 2 is in...

約7年 前 | 2 件の回答 | 0

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質問


Adding Second Line to Text Box in Plot
Hi folks. I have another formatting question. I want to place a text box in a 3D plot. I have the following code where I calc...

約7年 前 | 1 件の回答 | 1

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質問


Input String Variable to SaveAs Command
I'm trying to write the SaveAs command to save a plot. Upstream of the command, I'm trying to create a string parameter that's ...

約7年 前 | 1 件の回答 | 0

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質問


Formating String Parameter Left of Decimal
In the following code, I want to create the str variable to read: Radius=100E-6 meter However, I keep getting: Radius=1.00E...

約7年 前 | 2 件の回答 | 0

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質問


How To Write ODE45 Function File?
I have the following code in a script file. tspan = [0 12]; v0 = 0; [t,v] = ode45(@(t,v) 9.81-(0.25/68.1)*v^2, tspan,...

約7年 前 | 1 件の回答 | 0

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質問


Variable Usage in Function File
Unfortunately, I still am not very knowledgeable about using "function" commands in Matlab. As such, I have two questions. 1...

約7年 前 | 1 件の回答 | 0

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質問


fsolve Doesn't Recognize Input Variables
I'm new to the fsolve command and learning how it works. Following examples from Help, I wrote the following in the child file:...

7年以上 前 | 2 件の回答 | 0

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Not Getting Both Roots to Nonlinear Equation
I guess I'm a little amazed that Matlab struggled with this equation, but my TI-89 calculator didn't hesitate at all. Maybe Tex...

7年以上 前 | 0

質問


Not Getting Both Roots to Nonlinear Equation
Can anyone tell me why the following script doesn't give me both answers to the nonlinear equation? The "solve" command only re...

7年以上 前 | 3 件の回答 | 0

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質問


Comparing Values in 3D Matrix
I am doing a convergence study, which means I will loop through some numerics and compare the results of t and t-1, until an acc...

9年弱 前 | 1 件の回答 | 0

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Solving Blasius Equation Using Integral Method
Star Strider, Thanks for the input. I was afraid the question was aiming for a narrow niche of users. My hopes to find that...

約9年 前 | 0

質問


Solving Blasius Equation Using Integral Method
Anyone familiar with the Blasius Equation for boundary layer thickness? I have rewritten it as an ODE through the substitution ...

約9年 前 | 1 件の回答 | 0

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質問


How to Change from Frequency Domain to Time Domain with IFFT & FFT
I have the following data. Note the odd number of data points since I'm not sure if this affects the script or not. It is acce...

9年以上 前 | 0 件の回答 | 0

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How to Form Continuous Curve Plot
Star Strider, Perfect! Got it! Thanks! M Ridzon

9年以上 前 | 0

質問


How to Form Continuous Curve Plot
I have the following code. At the end, I issue the plot command. The resulting figure shows hundreds of discrete points along ...

9年以上 前 | 2 件の回答 | 0

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Results are Fractional and Imaginary
I found my answer to #2. The nthroot command forces the software to retrieve the value of the real root, instead of the imagina...

約10年 前 | 0

質問


Results are Fractional and Imaginary
Two part question...I have the following simple code. 1) When y=f(-2) is calculated and shown in the Command Window, it's sho...

約10年 前 | 3 件の回答 | 0

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