error regarding syms symbolic mathtool

i have an error regarding syms,i keyed in all in syms in symbolic however there are stilll some error,
thanks in advance

Answers (2)

You're missing an operator between Rid and (R1+Rf). If you want to multiply those two quantities you need to explicitly specify the multiplication operator *.
Yes, there is.
The expression is missing a multiplication operator —
Rid*(R1+Rf)
↑ ← HERE
MATLAB does not recognise implicit multiplication.

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Asked:

on 21 Feb 2022

Answered:

on 21 Feb 2022

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