Basic programming, can't figure out where the problem is.

Hello everyone,

I am writing a function that will solve a simple linear equation and I was just testing the inputs when this error came up and still can't find what the problem is. When calling the function I am using exactly the command an as many inputs and I have defined in the function but still no luck. Here's my code:

function [outputArg1,outputArg2] = problemSolver_one(m1,m2,r,g,x1,x2,x3,x4)

x1_dot=input('Enter state x1_dot')

x2_dot=input('Enter state x2_dot')

x3_dot=input('Enter state x3_dot')

x4_dot=input('Enter state x4_dot')

(m1*m2*r*g) = outputArg1

(x1*x2*x3*x4) = outputArg2

return

end

And this is what I type in to call the function:

>> problemSolver_one=(1,2,3,4,5,6,7,8)

and the error that I get:

problemSolver_one=(1,2,3,4,5,6,7,8)
                     ↑
Error: Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for
mismatched delimiters.

Thank you for your time!

[jonas]

What is this?! I think you may have mixed up the order of those arguments??

(m1*m2*r*g) = outputArg1
(x1*x2*x3*x4) = outputArg2

[Kevin Brinneman]

that is just a simple multiplicatipon that i am using to test that the function is taking the inputs.

[Image Analyst]

Did you see Walter's answer below that corrected your code?

Answer 1

[Walter Roberson]

Call it with

[output1, output2] = problemSolver_one(1,2,3,4,5,6,7,8)

and as jonas points out, change your code

outputArg1 = (m1*m2*r*g)
outputArg2 = (x1*x2*x3*x4)

[Kevin Brinneman]

Thank you very much Walter! It worked.