I want to define a matrix valued function: what is wrong with this code?

s0 = matrix([[1,0],[0,1]])
sy = matrix([[0,-I],[I,0]])
r(theta) = cos(theta/2)*s0 - I*sin(theta/2)*sy

r(1) does not evaluate to r(theta=1)

Thanks!

-- 
You received this message because you are subscribed to the Google Groups 
"sage-support" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to sage-support+unsubscr...@googlegroups.com.
To post to this group, send email to sage-support@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-support.
For more options, visit https://groups.google.com/d/optout.

Reply via email to