I'm using the sage-5.5 command line and some variables are automatically declared. For instance I can do
f = x^2
but not
f = t^2
My question: How does this come about? Which variables are defined like this? Where is this documented?
1 | initial version |
I'm using the sage-5.5 command line and some variables are automatically declared. For instance I can do
f = x^2
but not
f = t^2
My question: How does this come about? Which variables are defined like this? Where is this documented?