Let $U$ open in $\bbR^{d+m}$. $\Phi:U\to \bbR^m$ is a $C^1$ map such that $\Phi'(p)$ is surjective (which means columns of the $m\times (d+m)$ matrix of $\Phi'(p ...

\item $x^2 + xy + y^2 = 7$, 在 $(2, 1)$ 处. \item $x \cos xy = 0$, 在 $(1, \uppi/2)$ 处. 令 $F(x, y) = x^2 + xy + y^2 - 7$。显然 $F(2, 1) = 4 + 2 + 1 - 7 = 0 ...

In this paper, we implement an automatic modeling method for narrow vein type ore bodies based on Boolean combination constraints. Different from the direct interpolation approach, we construct the ...

This paper aims to develop the Euler implicit time-discretization of multivariable sliding-mode controllers to solve the numerical chattering problem without modifying the continuous-time control law.