ev = <1 2 3 4 5 >
ev += 100
ev = <101 102 103 104 105 >
ev -= 10
ev = <91 92 93 94 95 >
vec = <6 7 8 9 10 >
p = ev * vec
p = <546 644 744 846 950 >
vec2 = <1 2 >
p = ev * vec2
p = <>
p2 = ev + vec
p2 = <97 99 101 103 105 >