# Subs Command & Conversion into Matlab Function (multivariable)

1 view (last 30 days)
Alex Santizo on 7 Feb 2020
Answered: Jyothis Gireesh on 10 Feb 2020
syms t g f
g=t*sin*(1/2*t)+ln(t-1)
f=diff(g,t)
subs (f,t,4/3)
%Also need to solve by conversion into a matlab function
##### 1 CommentShow -1 older commentsHide -1 older comments
Walter Roberson on 7 Feb 2020
You need to pass a value to sin instead of multiply sin itself by something
t*sin(t/2)
For example.

Sign in to comment.

### Answers (1)

Jyothis Gireesh on 10 Feb 2020
Here are a few pointers which may be able to help you:
• As explained by Mr. Walter Roberson above, you need to pass an input argument to the “sin()” function. Or else it will be flagged as an error at run-time.
• I am assuming here that you want to convert the symbolic expression in “f” to a MATLAB function. You may use the “matlabFunction()”to achieve this result.
Please refer to the following documentation link on “matlabFunction()” for any clarifications
Hope this helps!!
##### 0 CommentsShow -2 older commentsHide -2 older comments

Sign in to comment.

### Categories

Find more on Conversion Between Symbolic and Numeric in Help Center and File Exchange

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!