Hello!
I have the following:
zzz <- expression(y[3]*r1 + r2)
deriv(zzz,c("r1","r2"))
Error in deriv.default(zzz,c("r1","r2")) :
Function '`[`' is not in the derivatives table
What am I missing, please? Since y is not one of the variables that is
being "acted upon", why is the [] an issue, please?
Thank you for any help!
Sincerely,
Erin
--
Erin Hodgess
Associate Professor
Department of Mathematical and Statistics
University of Houston - Downtown
mailto: erinm.hodg...@gmail.com
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