# The pound sign allows you to make comments in your Sage worksheet # Basic arithmetic is as you would expect: +, -, *, /, and ^ for addition, subtraction, multiplication, division, and exponentiation (respectively) #Try a few operations below. Type 1+1 in line 7 and hit enter. #You'll notice that nothing happened. To evaluate the expression, press Shift-Enter. Not try a few of the operations. # Using .n() v=vector([2,3]) w=vector([5,1]) P = arrow((0,0), v) Q = arrow((0,0), w) show(plot(P)+plot(Q))
lot v+w
(7, 4)