basic rings
The following rings are initially present in every session with
Macaulay 2.
(The names of these rings are double letters so the corresponding symbols
with single letters can be used as variables in rings.) Entries of these
rings are constructed as follows, and the usual arithmetic operations apply.
i1 : 1234
o1 = 1234 |
i2 : 123/4
123
o2 = ---
4
o2 : QQ |
i3 : 123.4
o3 = 123.4
o3 : RR |
i4 : 123+4*ii
o4 = 123 + 4ii
o4 : CC |
The usual arithmetic operations are available.
i5 : 4/5 + 2/3
22
o5 = --
15
o5 : QQ |
i6 : 10^20
o6 = 100000000000000000000 |
i7 : 3*5*7
o7 = 105 |
i8 : 5!
o8 = 120 |
An additional pair of division operations which produce integral quotients
and remainders is available.
i9 : 1234//100
o9 = 12 |
i10 : 1234%100
o10 = 34 |
