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# Aaron

Active since 2012

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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...

10 years ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

10 years ago

Question

How can I run multiple bisect programs in one file?
I have created bisection function files (five) and would like to combine them into one file to run. Below are the first 3. ...

10 years ago | 0 answers | 0

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Is it possible to use the bisection method?
I'm having a difficult time setting up my code. Here is a quick rundown of what I'm trying to do: I have a set(4) of equat...

10 years ago | 1 answer | 0

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What does this error mean and how do I fix it?
I received the following error and am not sure how to correct it? I've copied my 3 function files below. This thing is reall...

10 years ago | 0 answers | 0

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Why is this function not working?
I set the following function in my command window: f=@(x) 0.2+25*x-200*x^2+675*x^3-900*x^4+400*x^5; Then I created anoth...

10 years ago | 2 answers | 0

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Need some help with equation error, please.
I've set up the following two files to run an electrical potential problem and one of the variables that I'm using involves usin...

10 years ago | 1 answer | 0

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Question

Golden Search method file consolidation
I had created two files (function and main) for a golden search problem. I would like to make just one file, type it in the com...

10 years ago | 0 answers | 0

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How to plot the input variables vs functions using input variables?
I've tried to plot f(N) vs N but I am unable to get any lines on the graph. Just some spots. I need to plot the function using...

10 years ago | 0 answers | 0

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What am I doing wrong with this?
I'm trying to create a bisection method to solve a function, and I thought I knew how to set it up. But now I just don't know! ...

10 years ago | 1 answer | 0

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Using the bisection method
I'm not sure if I used the bisection method correctly. Do I have to have two separate .m files? Is the code below okay? T...

10 years ago | 0 answers | 0

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Can't figure out where my mistake is?
Trying to solve boundary value problem. I have a template to work off of but I'm not sure where I am coding wrong. functio...

10 years ago | 1 answer | 0

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Question

How to interpret boundary conditions for matlab?
I know that these are called Danckwerts Boundary conditions but I still don't understand. Uc = Uc(x=0) - D*dc/dx (x=0) dc/...

10 years ago | 0 answers | 0

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Using "bvp4c" to solve 2nd order DE?
I was told that using a template and changing a few things would provide me with an answer to a 2nd order DE, using bvp4c. But ...

10 years ago | 0 answers | 0

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I'm not sure what else I'm missing?
I've been trying to solve an ODE using ode45 and here is my code: function dydt = odepro4(t,y) t = 0; y = 1; dydt = (y.*...

10 years ago | 1 answer | 0

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How can I get my script to run properly?
I was initially having trouble with my function, but now since that is running okay, my script is not. It involves a for loop a...

10 years ago | 1 answer | 0

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Question

How do I get this function program to display "v" instead of "ans"?
function v = piecewise_fun(t) if 0 <= t & t <= 8 v = (10.*t).^2 - (5.*t) elseif 8 <= t & t <= 16 v = 624 -...

10 years ago | 1 answer | 0

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Question

Could someone check my work?
I've created a function that will calculate a piecewise function to be called on. I want to make sure that it is okay. Here ...

10 years ago | 2 answers | 0

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I need some assistance with my function program?
I'm not sure where my mistakes are. The following is my main program: a = input('Enter value for side a: '); if ...

11 years ago | 2 answers | 0

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How would I modify the output for the answers in the program I've written?
I've created a simple program to convert inches to centimeters and pounds to kilograms and I would like to reduce the number of ...

11 years ago | 1 answer | 0

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How do I get the command prompt to start on a new line in my command window.
After I enter my program to test, the ">>" appear immediately after the answer and not on a new line.

11 years ago | 1 answer | 0

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How to get the the program to stop?
I'm creating a program and need it to stop at a prompted number. if true % code end *n = input('Enter number of ...

11 years ago | 0 answers | 0

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I need to find out what this program is missing
I'm trying to use this program to calculate the cos of a given(prompted) angle in degrees. A=input('Enter angle:'); x=(p...

11 years ago | 1 answer | 0

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Need some assistance with creating a program
I need to create a *while loop* program to calculate cos(x) accurate to 6 digits after decimal using: cos(x)=1-(x^2/2!)+(x^4/...

11 years ago | 1 answer | 0

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Assistance with creating multidimensional matrices
I have created a program shown below: Rows = input('Enter the number of rows in the matrix: '); Columns = input('Enter the ...

11 years ago | 1 answer | 0

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'For loop' for beginners
I'm having a hard time figuring out the for loop command. I want to create a .m file that will prompt a user to enter an array ...

11 years ago | 3 answers | 0

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How to keep my complex root answers un-simplified?
I've created a formula to calculate complex roots in editor and have the following: a=input('Enter the value for a: '); ...

11 years ago | 1 answer | 0

### 1

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How do I change the display of my answers if condition is not met?
Here is what I have so far: *format compact a=input('Enter value for side a: '); if a <= 0...

11 years ago | 1 answer | 0

### 1

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I keep getting a syntax error with my program???
I'm creating a program that identifies x and y coordinates in a Cartesian coordinate system. *x=input('Enter value for x: '...

11 years ago | 2 answers | 0