MaxLimit
MaxLimit[f,x->x*] gives the max limit x->x*f(x).
MaxLimit[f,{x1->x1*,…,xn->xn*}] gives the nested max limit +x1->x1*⋯ +xn->xn*f(x1,…,xn).
MaxLimit[f,{x1,…,xn}->{x1*,…,xn*}] gives the multivariate max limit +{x1,…,xn}->{x1*,…,xn*}f(x1,…,xn).
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