How to create a symbolic arbitrary dimensional zero vector?
one way:
sage: symbolic_expression(list(zero_vector(k)))
# k, dim. of vector, k is some fixed integer, e.g. k = 10,
# many thanks to @tmonteil
but it is too long!!
Can you make your wish more explicit ? Is k a fixed number ? Wich order of magnitude ?
Sorry, it is some fixed integer, e.g. k = 10
what do you mean by "it is too long" ?
the length of the string "symbolic_expression(list(zero_vector(k)))", can we use some command like "zero_list(k)"?