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Alex


University of Toledo

Active since 2011

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Creating user defined variables and solving systems with a script
Hi all, been a while since I needed a question answered, so here goes: I am creating a script that is used to solve a system ...

ongeveer 11 jaar ago | 1 answer | 0

1

answer

Question


Working backwards from a command window
Hey all, I had a strange question that I couldn't find an answer for, perhaps I could get some help here? A friend of mine wa...

meer dan 11 jaar ago | 1 answer | 0

1

answer

Question


Help with a MuPAD error please
Hi, I'm trying to run a program I put together, but I keep encountering a MuPAD error partway through. The program is exactly t...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Question


MuPAD error
Hey all, I've been debugging this code for a while now, but I can't for the life of my find out what's wrong with this. When...

meer dan 12 jaar ago | 0 answers | 0

0

answers

Question


Understanding data structures.
Hey all, I have a question about the data Matlab is presenting me with. When I run a program I have created, Matlab outputs t...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Question


Help iterating
Hey all, I've been working with a program that uses data from a spreadsheet, and solves an equation for each row of data. I ...

meer dan 12 jaar ago | 0 answers | 0

0

answers

Question


Troubleshooting tips
Hey all, I'm creating a function to pass to fsolve, to be solved in terms of V. When I run my program, however, Matlab retur...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Question


fsolve inputs
Hey all, I'm trying to pass some equations to fsolve, but I'm getting nothing but errors. I have 3 complex equations, and to ...

meer dan 12 jaar ago | 2 answers | 0

2

answers

Question


Passing data to fsolve
Hey all, I'm trying to pass some equations to fsolve, but I'm getting nothing but errors. I have 3 complex equations, and to...

meer dan 12 jaar ago | 0 answers | 0

0

answers

Question


fsolve with symbolics
Hey all, I've been working on some code, and I have two questions: 1) If I'm using fsolve, and one of my guesses is zero, wi...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Question


Defining variables for fsolve
Hey all, quick question: I've been trying to pass along data to an fsolve command all morning, but I keep running into errors...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Question


Finishing a calculation
Hey all, I've been analyzing lots of data recently, and thanks to everyone here, I've made great progress in learning Matlab and...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Question


Could someone please explain...
...the following error? I've looked in the help files and in previous questions to no avail. I am setting up an iteration as f...

meer dan 12 jaar ago | 2 answers | 0

2

answers

Question


Why is this variable "undefined"?
Hey all, here's my code: %This forgram will take 4 solutions of n1 and solve them. y = 250; n0 = 1; n2 = 1.69; k2 ...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Question


Solve not working properly?
Hey all, I'm running a bit of code to solve for a variable in an equation. Here are the specs: theta = (2.*pi().*n1.*d...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Question


Need some clarification
Hey all, I've got some code that's trying to solve a system of 6 equations using fsolve. It runs a loop, because the six equati...

bijna 13 jaar ago | 1 answer | 0

1

answer

Question


What causes this variation?
Hey all, I've got to nearly identical programs, and one of them works while the other doesn't. When I run: data = csvread(...

bijna 13 jaar ago | 1 answer | 0

1

answer

Question


Matlab Limitation?
Hey all, I've been performing some calculations with Matlab, and I've been getting unexpected results. I've been trying to calc...

bijna 13 jaar ago | 1 answer | 0

1

answer

Question


iterating A Function
Hey all, quick question: Say I have some data: a,b,c 2,3,4 5,6,7 8,9,10 And an equation: 0=((a-b)./c)-R an...

bijna 13 jaar ago | 1 answer | 0

1

answer

Question


Running an Iteration for single variable.
Hey all, I've been using a closure loop with fsolve to crunch data. The below code took 3 rows of data from a .csv, and plugged...

bijna 13 jaar ago | 0 answers | 0

0

answers

Question


Outputting Data in Excel
Hey all, I'm running the piece of code here: data = csvread('data.csv'); assert (mod(size(data, 1), 3) == 0, ... ...

bijna 13 jaar ago | 2 answers | 0

2

answers

Question


Solving Highly Irregular Non-Linear Equations
Hey all, I'm trying to solve a system of 3 highly irregular nonlinear equations using Matlab, but the solutions I get are not th...

bijna 13 jaar ago | 2 answers | 0

2

answers

Question


Defining Variables
Hi, I'm a fairly new user of Matlab, and I set up a list of variable definitions like so: n0=1; n21=1.694; n22=1.7046; ...

bijna 13 jaar ago | 1 answer | 0

1

answer

Question


Altering Default MaxFunEvals
Hi, I'm having trouble altering the default number of evaluations (300) of an fsolve. My .m file looks like this (function omit...

bijna 13 jaar ago | 1 answer | 0

1

answer

Question


Importing data at a regular interval for analysis
Say I have an array in a .csv file like this: a,b,c,d,e,f 20,1,10,100,1000,100 21,2,20,200,2000,200 22,3,30,300,3000...

bijna 13 jaar ago | 2 answers | 0

2

answers

Question


using .csv files with Matlab
Say I have an array in a .csv file like this: a,b,c,d,e,f 20,1,10,100,1000,100 21,2,20,200,2000,200 22,3,30,300,3000...

bijna 13 jaar ago | 1 answer | 0

1

answer

Question


Plotting help
Hi, I'm pretty new to Matlab, and I tried to execute this script: eq1 = '((((1.5-(x-(i*(y))))/(1.5+(x-(i*(y)))))+((((x-(i*y))...

ongeveer 13 jaar ago | 1 answer | 0

1

answer