-Numbers may have a leading `-` and a single `.` to mark the decimal
-point, but something must be after the `.`. If both of the numbers in
-a pair are integers, the result is clamped to an integer.
+Numbers may have a leading "-" and a single "." to mark the decimal
+point, but something must be after the ".". No other floating point
+syntax (e.g. `1e6`) is supported. They are treated as fixed-point
+values, with the point's position itself interpolating.