I need help with finding an algorithm, preferable in MatLab to optimize the following problem
$$ \max \sum_{i=1}^N a_ix_i + b_i$$ With constraints $$ \sum_{i=1}^N c_ix_i^2 + d_ix_i +e_i < C$$
$$x \in \mathbb R \quad \quad \quad a,b,c,d,r,C \in \mathbb R $$
Thank you