$I.\quad$ At the point $t_1$
| $U_{\rm O}(t_1) \ \ = -\quad { 1 \over {\tau} } \quad \ \cdot \int_{t_0}^{t_1} \quad U_{\rm I} \ {\rm d}t \ + \ U_{\rm O}(t_0)$ | |
| $\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad$ | $\qquad\qquad$ |
| $U_{\rm O}(t_1) \ \ = -{ 1 \over {{5 ~\rm k\Omega} \cdot 1 ~\rm µF} }\cdot\int_{0}^{10 ~\rm ms} 1~{\rm V} \ {\rm d}t + 0 ~\rm V$ | |
| $\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad$ | $\qquad\qquad$ |
| $U_{\rm O}(t_1) \ \ = - \quad { 1 \over {5 ~\rm ms} } \quad \cdot 1~{\rm V} \ \cdot \int_{0}^{10 ~\rm ms} \ {\rm d}t\quad\quad$ | |
| $\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad$ | $\qquad\qquad$ |
| $U_{\rm O}(t_1) \ \ = - \quad { 1 \over {5 ~\rm ms} } \quad \cdot 1~{\rm V} \ \cdot [t]_{0}^{10 ~\rm ms} = \quad -2 ~\rm V$ | |
| $\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad$ | $\qquad\qquad$ |
$I.\quad$ At the point $t_2$
| $U_{\rm O}(t_1) \ \ = -\quad { 1 \over {\tau} } \quad \ \cdot \int_{t_0}^{t_1} U_{\rm I} \ {\rm d}t \ + \ U_{\rm O}(t_0)$ | |
| $\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad$ | $\qquad\qquad$ |
| $U_{\rm O}(t_1) \ \ = -{ 1 \over {5 ~\rm ms} } \quad \cdot (-1~{\rm V}) \ \cdot [t]_{10 ~\rm ms}^{20 ~\rm ms} + 2~\rm V = 0~\rm V$ | |
| $\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad$ | $\qquad\qquad$ |
$I.\quad$ At the point $t_3$
| $U_{\rm O}(t_1) \ \ = -\quad { 1 \over {\tau} } \quad \ \cdot \int_{t_0}^{t_1} U_{\rm I} \ {\rm d}t \ + \ U_{\rm O}(t_0)$ | |
| $\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad$ | $\qquad\qquad$ |
| $U_{\rm O}(t_1) \ \ = -{ 1 \over {5 ~\rm ms} } \quad \cdot (-2V) \ \cdot [t]_{10 ~\rm ms}^{20 ~\rm ms} + 0 ~\rm V = -2 ~\rm V$ | |
| $\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\quad$ | $\qquad\qquad$ |
