What is a sage object?
How do I convert a lambda function to a sage object?
I would like to use the plot command with my lambda function
from numpy import sign H=lambda x: (sign(x)+1)/2 P = lambda x, a,b: H(x - a) - H(x - b) plot(P(x,5,10), (x,-10,20) # or BOX510(x) = lambda x: P(x,5,10) plot(BOX510(x), (x,-10,20)
I get error messages. I had a glance at the documentation. It says the plot command expects a Sage Object, but unfortuntely I do not have the notion for its meaning.
Eureka, it works, when I use the sign function of sage instead of the one I imported from numpy. Yet, I would like to know what a sage object is?