value s -- provides the value of s, which may be a
symbol, string, or an expression.
i1 : a = 11111111111
o1 = 11111111111
i2 : x = quote a
o2 = a
o2 : Symbol
i3 : x
o3 = a
o3 : Symbol
i4 : value x
o4 = 11111111111
i5 : p = (expression 2)^3 * (expression 3)^2
3 2
o5 = 2 3
o5 : Product
i6 : value p
o6 = 72
i7 : value "2 + 2"
o7 = 4
If s is a string, its contents are treated as code in the
Macaulay 2 language, parsed it in its own scope, the same way a file is,
and evaluated. The string may even contain multiple lines.
i8 : value "a := 2 \n a+a"
o8 = 4
Since the local assignment to a above occurred in a new scope,
the value of the global variable a is unaffected.
