I enter the following code
var('y')
f(y) = matrix([y])
f(0)
both in yupyter notebook, and then in sage cell, and it seems there is a bug with defining matrix function in yupyter notebook.
code in yupyter notebook, does not work well
While the same code is entered in sage cell, everything works perfect. How to resolve the issue in the yupyter notebook?
Thank you.
SageMathCell is running SageMath 9.5, the newest version. Your Jupyter notebook is running version 9.3. Version 9.5 introduces new functionality for SageMath symbolic expressions relating to matrices and vectors, see here for more: https://wiki.sagemath.org/ReleaseTours/sage-9.5#Changes_to_symbolic_expressions
To solve your problem, you need to update your Jupyter notebooks kernel to SageMath 9.5
