1 | initial version |

Rather than using

```
cython(
import numpy as np
...
)
```

you should just have

```
import numpy as np
...
```

and save the file as "FILE.pyx". The "pyx" suffix will tell Sage that it is a Cython file.

2 | No.2 Revision |

Rather than using

```
cython(
import numpy as np
...
)
```

you should just have

```
import numpy as np
...
```

and save the file as "FILE.pyx". The "pyx" suffix will tell Sage that it is a Cython file.

For the `@parallel`

issue, you need to add an import:

```
from sage.parallel.decorate import parallel
```

3 | No.3 Revision |

Rather than using

```
cython(
import numpy as np
...
)
```

you should just have

```
import numpy as np
...
```

and save the file as "FILE.pyx". The "pyx" suffix will tell Sage that it is a Cython file.

For the `@parallel`

issue, you need to add an ~~import:~~import: add the line

```
from sage.parallel.decorate import parallel
```

at the top of your file.

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