der2 | R Documentation |
Symbolic differentiation of second order of an expression
der2(expr, vars, simplify = TRUE)
expr |
A |
vars |
variables to take derivate with respect to |
simplify |
Simplify result |
if (has_sympy()) { x <- symbol("x") y <- symbol("y") f <- 3*x^2 + x*y^2 der2(f, x) h <- der2(f, list(x, y)) h dim(h) H <- matrify(h) H dim(H) }
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