| # |
ID |
ODE |
Solved? |
Maple |
Mma |
Sympy |
time(sec) |
| 13901 |
\begin{align*}
y^{\prime }&=y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.470 |
|
| 13902 |
\begin{align*}
y^{\left (6\right )}+2 y^{\left (5\right )}+5 y^{\prime \prime \prime \prime }&=x^{3}+x^{2} {\mathrm e}^{-x}+\sin \left (2 x \right ) {\mathrm e}^{-x} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.470 |
|
| 13903 |
\begin{align*}
y^{\prime \prime }+n^{2} y&=h \sin \left (r x \right ) \\
y \left (0\right ) &= a \\
y^{\prime }\left (0\right ) &= c \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.470 |
|
| 13904 |
\begin{align*}
y^{5} y^{\prime }+5 y^{6}&=1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.470 |
|
| 13905 |
\begin{align*}
t y^{\prime \prime }-4 y&=0 \\
\end{align*} Series expansion around \(t=0\). |
✓ |
✓ |
✓ |
✓ |
1.470 |
|
| 13906 |
\begin{align*}
y^{\prime \prime }+y^{\prime }&=4 x^{3}-2 \,{\mathrm e}^{2 x} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.470 |
|
| 13907 |
\begin{align*}
3 y^{2} y^{\prime }+y^{3}&={\mathrm e}^{-x} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.471 |
|
| 13908 |
\begin{align*}
y^{\prime }&={\mathrm e}^{2 x}+3 y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.471 |
|
| 13909 |
\begin{align*}
\left (1-x \right ) x y^{\prime \prime }-3 y^{\prime }+2 y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.471 |
|
| 13910 |
\begin{align*}
y-\left (x +1\right ) y^{\prime }+2 \left (x +1\right )^{2} y^{\prime \prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.471 |
|
| 13911 |
\begin{align*}
x^{2} y^{\prime \prime }+y^{\prime }&=2 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.471 |
|
| 13912 |
\begin{align*}
y^{\prime }&=1+y \\
y \left (0\right ) &= 4 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.471 |
|
| 13913 |
\begin{align*}
{y^{\prime }}^{3}+x -y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.472 |
|
| 13914 |
\begin{align*}
2 y+3 y^{\prime }+\left (1-x \right ) x y^{\prime \prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.472 |
|
| 13915 |
\begin{align*}
3 x^{2} y^{\prime \prime }-7 y^{\prime } x +3 y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.472 |
|
| 13916 |
\begin{align*}
y^{\prime }+2 y&=2 \operatorname {Heaviside}\left (t -1\right ) \\
y \left (0\right ) &= 1 \\
\end{align*} Using Laplace transform method. |
✓ |
✓ |
✓ |
✓ |
1.474 |
|
| 13917 |
\begin{align*}
x^{2} y^{\prime \prime }+y^{\prime } x -4 y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.474 |
|
| 13918 |
\begin{align*}
y^{\prime }&=y^{2}-4 y+2 \\
y \left (0\right ) &= -1 \\
\end{align*} |
✓ |
✓ |
✗ |
✓ |
1.474 |
|
| 13919 |
\begin{align*}
y^{\prime \prime } x +y^{\prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.474 |
|
| 13920 |
\begin{align*}
2 x^{2} y^{\prime \prime }+7 x \left (x +1\right ) y^{\prime }-3 y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.474 |
|
| 13921 |
\begin{align*}
y^{\prime \prime }-\frac {2 t y^{\prime }}{t^{2}+1}+\frac {2 y}{t^{2}+1}&=t^{2}+1 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.475 |
|
| 13922 |
\begin{align*}
x^{2} y^{\prime \prime }-11 y^{\prime } x +36 y&=0 \\
y \left (1\right ) &= {\frac {1}{2}} \\
y^{\prime }\left (1\right ) &= 2 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.475 |
|
| 13923 |
\begin{align*}
4 y+y^{\prime \prime }&=4 \cos \left (2 x \right )+6 \cos \left (x \right )+8 x^{2}-4 x \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.475 |
|
| 13924 |
\begin{align*}
y^{\prime \prime }-a^{2} y&={\mathrm e}^{a x}+{\mathrm e}^{x n} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.475 |
|
| 13925 |
\begin{align*}
i^{\prime \prime }+2 i^{\prime }+5 i&=0 \\
i \left (0\right ) &= 2 \\
i^{\prime }\left (0\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.475 |
|
| 13926 |
\begin{align*}
y^{\prime }&=1-\cot \left (y\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.475 |
|
| 13927 |
\begin{align*}
y-\left (x +1\right ) y^{\prime }+y^{\prime \prime } x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.476 |
|
| 13928 |
\begin{align*}
{\mathrm e}^{-y} y^{\prime }&=1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.476 |
|
| 13929 |
\begin{align*}
y^{\prime \prime } x&=\left (2 x^{2}+1\right ) y^{\prime } \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.476 |
|
| 13930 |
\begin{align*}
x^{2} \cos \left (x \right ) y^{\prime \prime }+\left (x \sin \left (x \right )-2 \cos \left (x \right )\right ) \left (-y+y^{\prime } x \right )&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.476 |
|
| 13931 |
\begin{align*}
\left ({y^{\prime }}^{2}+a \left (-y+y^{\prime } x \right )\right ) y^{\prime \prime }&=b \\
\end{align*} |
✗ |
✓ |
✓ |
✗ |
1.477 |
|
| 13932 |
\begin{align*}
c y^{\prime }&=b y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.477 |
|
| 13933 |
\begin{align*}
\left (1-x \right ) y^{\prime \prime }+y^{\prime } x -y&=\left (1-x \right )^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.477 |
|
| 13934 |
\begin{align*}
y^{\prime }&=\sqrt {x^{2}+y^{2}} \\
y \left (0\right ) &= 1 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.477 |
|
| 13935 |
\begin{align*}
x^{2} y^{\prime \prime }+x \left (-2 x^{2}+1\right ) y^{\prime }-4 \left (-x^{2}+1\right ) y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.478 |
|
| 13936 |
\begin{align*}
4 y y^{\prime }-4 x {y^{\prime }}^{2}+x y y^{\prime \prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.478 |
|
| 13937 |
\begin{align*}
y^{\prime \prime }+{y^{\prime }}^{2}+y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.478 |
|
| 13938 |
\begin{align*}
\left (x -1\right ) y^{\prime \prime }-y^{\prime } x +y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.478 |
|
| 13939 |
\begin{align*}
t^{2} y^{\prime \prime }-3 y^{\prime } t +4 y&=0 \\
y \left (1\right ) &= 1 \\
y^{\prime }\left (1\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.479 |
|
| 13940 |
\begin{align*}
y^{\prime \prime } x -3 y^{\prime }&=5 x \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.479 |
|
| 13941 |
\begin{align*}
y^{\prime \prime }+16 y&=0 \\
y \left (0\right ) &= 4 \\
y^{\prime }\left (0\right ) &= 12 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.479 |
|
| 13942 |
\begin{align*}
y^{\prime \prime }&=\operatorname {f2} \left (x \right )+\operatorname {f3} \left (x \right ) y+\operatorname {f1} \left (x \right ) y^{2}+y^{3}+\left (3 \operatorname {f1} \left (x \right )-y\right ) y^{\prime } \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
1.480 |
|
| 13943 |
\begin{align*}
x^{2} \left (2 x +1\right ) y^{\prime \prime }+2 x \left (1+6 x \right ) y^{\prime }-2 y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.480 |
|
| 13944 |
\begin{align*}
x \left (x^{2}+1\right ) y^{\prime \prime }+2 \left (x^{2}-1\right ) y^{\prime }-2 y x&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.480 |
|
| 13945 |
\begin{align*}
y^{\prime \prime } x +\left (x^{n} a +b \right ) y^{\prime }+a \left (b -1\right ) x^{n -1} y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.480 |
|
| 13946 |
\begin{align*}
y^{\prime }&=-y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.480 |
|
| 13947 |
\begin{align*}
y^{\prime \prime }&=x^{2} \sin \left (x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.480 |
|
| 13948 |
\begin{align*}
y^{\prime }&=y^{2}-6 y-16 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.480 |
|
| 13949 |
\begin{align*}
x_{1}^{\prime }&=x_{1}-x_{2}+x_{3} \\
x_{2}^{\prime }&=x_{1}+x_{2}-x_{3}+6 \,{\mathrm e}^{-t} \\
x_{3}^{\prime }&=2 x_{1}-x_{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.481 |
|
| 13950 |
\begin{align*}
x \left (x +3\right ) y^{\prime \prime }-9 y^{\prime }-6 y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.481 |
|
| 13951 |
\begin{align*}
x \left (x -3\right ) y^{\prime \prime }+3 y^{\prime }&=x^{2} \\
y \left (1\right ) &= 0 \\
y^{\prime }\left (1\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.481 |
|
| 13952 |
\begin{align*}
y^{\prime \prime \prime \prime }+6 y^{\prime \prime \prime }+18 y^{\prime \prime }+30 y^{\prime }+25 y&={\mathrm e}^{-t} \cos \left (2 t \right )+{\mathrm e}^{-2 t} \sin \left (t \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.481 |
|
| 13953 |
\begin{align*}
2 x^{2} \left (3 x +2\right ) y^{\prime \prime }+x \left (4+21 x \right ) y^{\prime }-\left (-9 x +1\right ) y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.482 |
|
| 13954 |
\begin{align*}
x^{2} y^{\prime \prime }+x \left (-2 x^{2}+1\right ) y^{\prime }-4 \left (2 x^{2}+1\right ) y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.482 |
|
| 13955 |
\begin{align*}
c y^{\prime }&=a x +y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.482 |
|
| 13956 |
\begin{align*}
y^{\prime \prime }-y&=0 \\
y \left (0\right ) &= {\frac {5}{4}} \\
y^{\prime }\left (0\right ) &= -{\frac {3}{4}} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.483 |
|
| 13957 |
\begin{align*}
y^{\prime \prime } x +2 y^{\prime }+a^{3} x^{2} y&=2 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✗ |
1.483 |
|
| 13958 |
\begin{align*}
\left (-x^{2}+x \right ) y^{\prime \prime }+3 y^{\prime }+2 y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.483 |
|
| 13959 |
\begin{align*}
4 y^{3} {y^{\prime }}^{2}-4 y^{\prime } x +y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.483 |
|
| 13960 |
\begin{align*}
y^{\prime }&=12+4 y-y^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.483 |
|
| 13961 |
\begin{align*}
y^{\prime }&=y^{2} \left (4-y^{2}\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.483 |
|
| 13962 |
\begin{align*}
2 y^{\prime \prime } x -y^{\prime }+2 y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.484 |
|
| 13963 |
\begin{align*}
\left (x^{2}+1\right ) y^{\prime \prime }+{y^{\prime }}^{3}&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.484 |
|
| 13964 |
\begin{align*}
4 y+2 x \left (x^{2}+1\right ) y^{\prime }+\left (x^{2}+1\right )^{2} y^{\prime \prime }&=0 \\
y \left (0\right ) &= 0 \\
y^{\prime }\left (0\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.484 |
|
| 13965 |
\begin{align*}
y^{\prime \prime }+y^{\prime }&=x +{\mathrm e}^{-x} \\
y \left (0\right ) &= 0 \\
y^{\prime }\left (0\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.484 |
|
| 13966 |
\begin{align*}
2 y^{\prime }+2 y+w^{\prime }-w&=x +1 \\
y^{\prime }+3 y+w^{\prime }+w&=4 x +14 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.484 |
|
| 13967 |
\begin{align*}
y x +y^{\prime } x&=1-y \\
y \left (1\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.485 |
|
| 13968 |
\begin{align*}
y^{\prime }&=y-\sin \left (x \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.486 |
|
| 13969 |
\begin{align*}
y&=\tan \left (x \right ) y^{\prime }-{y^{\prime }}^{2} \sec \left (x \right )^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.486 |
|
| 13970 |
\begin{align*}
\left (x -2\right )^{2} y^{\prime \prime }-\left (x -2\right ) y^{\prime }+y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.486 |
|
| 13971 |
\begin{align*}
x^{2} y^{\prime \prime }+x \left (2 x^{2}+1\right ) y^{\prime }-\left (-10 x^{2}+1\right ) y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.487 |
|
| 13972 |
\begin{align*}
a y y^{\prime }+2 x {y^{\prime }}^{2}+x y y^{\prime \prime }&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.487 |
|
| 13973 |
\begin{align*}
4 y^{\prime \prime }+y&=2 \sec \left (2 t \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.487 |
|
| 13974 |
\begin{align*}
x&={y^{\prime }}^{2}+y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.487 |
|
| 13975 |
\begin{align*}
y^{\prime \prime }+y^{\prime }-y&=0 \\
y \left (0\right ) &= 2 \\
y^{\prime }\left (0\right ) &= 0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.487 |
|
| 13976 |
\begin{align*}
2 y^{\prime } x +y&=10 \sqrt {x} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.488 |
|
| 13977 |
\begin{align*}
\left (1+{y^{\prime }}^{2}\right ) x&=\left (x +y\right ) y^{\prime } \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.488 |
|
| 13978 |
\begin{align*}
y^{\prime \prime }-7 y^{\prime }&=\left (x -1\right )^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.488 |
|
| 13979 |
\begin{align*}
x^{2} y^{\prime \prime }-y^{\prime } x -3 y&=x^{{3}/{2}} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.490 |
|
| 13980 |
\begin{align*}
2 \left (1-x \right ) x y^{\prime \prime }+\left (1-11 x \right ) y^{\prime }-10 y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.490 |
|
| 13981 |
\begin{align*}
y^{\prime \prime } x +\left (3+2 x \right ) y^{\prime }+4 y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.490 |
|
| 13982 |
\begin{align*}
y^{\prime }&=3-2 y \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.490 |
|
| 13983 |
\begin{align*}
y^{\prime }+2 y x&=1+x^{2}+y^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.491 |
|
| 13984 |
\begin{align*}
y^{\prime \prime }+2 y&=4 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.491 |
|
| 13985 |
\begin{align*}
y^{\prime \prime }-2 y^{\prime }&=\left \{\begin {array}{cc} 4 & 0\le t <1 \\ 6 & 1\le t \end {array}\right . \\
y \left (0\right ) &= -6 \\
y^{\prime }\left (0\right ) &= 1 \\
\end{align*} Using Laplace transform method. |
✓ |
✓ |
✓ |
✗ |
1.491 |
|
| 13986 |
\begin{align*}
y^{\prime \prime }-4 y^{\prime }+4 y&=2 t^{2}+4 \,{\mathrm e}^{2 t} t +t \sin \left (2 t \right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.492 |
|
| 13987 |
\begin{align*}
y^{\prime }-2 y&=\left \{\begin {array}{cc} 1-x & x <1 \\ 0 & 1\le x \end {array}\right . \\
y \left (0\right ) &= 1 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.493 |
|
| 13988 |
\begin{align*}
16 x^{2} y^{\prime \prime }+32 y^{\prime } x +\left (x^{4}-12\right ) y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.493 |
|
| 13989 |
\begin{align*}
10 Q^{\prime }+100 Q&=\operatorname {Heaviside}\left (t -1\right )-\operatorname {Heaviside}\left (-2+t \right ) \\
Q \left (0\right ) &= 0 \\
\end{align*} Using Laplace transform method. |
✓ |
✓ |
✓ |
✓ |
1.493 |
|
| 13990 |
\begin{align*}
y^{\prime \prime }+9 y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.493 |
|
| 13991 |
\begin{align*}
y^{\prime \prime }-9 y&=0 \\
y \left (0\right ) &= 3 \\
y^{\prime }\left (0\right ) &= -3 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.494 |
|
| 13992 |
\begin{align*}
y^{\prime \prime }+9 y&=\ln \left (2 \sin \left (\frac {x}{2}\right )\right ) \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.494 |
|
| 13993 |
\begin{align*}
\left (4+2 x -y\right ) y^{\prime }+5+x -2 y&=0 \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.495 |
|
| 13994 |
\begin{align*}
2 x \left (x +1\right ) y^{\prime \prime }+3 \left (x +1\right ) y^{\prime }-y&=0 \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✓ |
1.495 |
|
| 13995 |
\begin{align*}
y^{\prime }&=y+t \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.495 |
|
| 13996 |
\begin{align*}
{y^{\prime }}^{2}&=y^{2} a^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.496 |
|
| 13997 |
\begin{align*}
\left (1+a \right ) x y^{\prime }+x^{2} y^{\prime \prime }&=x^{k} f \left (x^{k} y, k y+y^{\prime } x \right ) \\
\end{align*} |
✗ |
✗ |
✗ |
✗ |
1.496 |
|
| 13998 |
\begin{align*}
x^{2} y^{\prime \prime \prime \prime }&=2 y^{\prime \prime \prime } \\
\end{align*} |
✓ |
✓ |
✓ |
✓ |
1.496 |
|
| 13999 |
\begin{align*}
2 y^{\prime \prime \prime } y^{\prime }&=2 {y^{\prime \prime }}^{2} \\
\end{align*} |
✓ |
✓ |
✓ |
✗ |
1.496 |
|
| 14000 |
\begin{align*}
2 x^{2} y^{\prime \prime }-y^{\prime } x +\left (-x^{2}+1\right ) y&=x^{2} \\
\end{align*} Series expansion around \(x=0\). |
✓ |
✓ |
✓ |
✗ |
1.496 |
|