Arithmetics on tables

Applying arithmetic verbs on tables results in expected behaviour:

o)a:(+:)`a`b`c!(1 2 3;1 2 3;1 2 3); a+1
a b c
-----
2 2 2
3 3 3
4 4 4
o)

Adding vector to a table gives per field addition.

o)a:(+:)`a`b`c!(1 2 3;1 2 3;1 2 3); a+1 2 3
a b c
-----
2 3 4
3 4 5
4 5 6
o)

Adding two tables keeps the record count:

o)a:(+:)`a`b`c!(1 2 3;1 2 3;1 2 3); a+a
a b c
-----
2 2 2
4 4 4
6 6 6
o)