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Hello! I type in sage notebook 5.8 on my local computer:

import numpy as np
np.mgrid?
....
example:
>>> np.mgrid[-1:1:5j]
array([-1. , -0.5,  0. ,  0.5,  1. ])

But when I type in my notebook:

np.mgrid[-1:1:5j]

and press shift-enter, I get mistake: TypeError: Unable to convert -0.200000000000000*I to float; use abs() or real_part() as desired

It seems to me it's the bug...

Hello! I type in sage notebook 5.8 on my local computer:

import numpy as np
np.mgrid?
....
example:
>>> np.mgrid[-1:1:5j]
array([-1. , -0.5,  0. ,  0.5,  1. ])

But when I type in my notebook:

np.mgrid[-1:1:5j]

and press shift-enter, I get mistake: TypeError: Unable to convert -0.200000000000000*I to float; use abs() or real_part() as desired

It seems to me it's the bug...

Hello! I type in sage notebook 5.8 on my local computer:

import numpy as np
np.mgrid?
....
example:
>>> np.mgrid[-1:1:5j]
array([-1. , -0.5,  0. ,  0.5,  1. ])

But when I type in my notebook:

np.mgrid[-1:1:5j]

and press shift-enter, I get mistake: TypeError: Unable to convert -0.200000000000000*I to float; use abs() or real_part() as desired

It seems to me it's the bug...

Hello! I type in sage notebook 5.8 on my local computer:

import numpy as np
np.mgrid?
....
example:
>>> np.mgrid[-1:1:5j]
array([-1. , -0.5,  0. ,  0.5,  1. ])

But when I type in my notebook:

np.mgrid[-1:1:5j]

and press shift-enter, I get mistake: TypeError: Unable to convert -0.200000000000000*I to float; use abs() or real_part() as desired

It seems to me it's the bug...

Hello! I type in sage notebook 5.8 on my local computer:

import numpy as np
np.mgrid?
....
example:
>>> np.mgrid[-1:1:5j]
array([-1. , -0.5,  0. ,  0.5,  1. ])

But when I type in my notebook:

np.mgrid[-1:1:5j]

and press shift-enter, I get mistake: TypeError: Unable to convert -0.200000000000000*I to float; use abs() or real_part() as desired

It seems to me it's the bug...

Hello! I type in sage notebook 5.8 on my local computer:

import numpy as np
np.mgrid?
....
example:
>>> np.mgrid[-1:1:5j]
array([-1. , -0.5,  0. ,  0.5,  1. ])

But when I type in my notebook:

np.mgrid[-1:1:5j]

and press shift-enter, I get mistake: TypeError: Unable to convert -0.200000000000000*I to float; use abs() or real_part() as desired

It seems to me it's the bug...

Hello! I type in sage notebook 5.8 on my local computer:

import numpy as np
np.mgrid?
....
example:
>>> np.mgrid[-1:1:5j]
array([-1. , -0.5,  0. ,  0.5,  1. ])

But when I type in my notebook:

np.mgrid[-1:1:5j]

and press shift-enter, I get mistake: TypeError: Unable to convert -0.200000000000000*I to float; use abs() or real_part() as desired

It seems to me it's the bug...