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#### 2.3.2 Constructing Numbers from Tokens

A real is constructed directly from a corresponding numeric token; see Figure~2–9.

A complex is notated as a `#C` (or `#c`) followed by a list of two reals; see Sharpsign C.

The reader macros `#B`, `#O`, `#X`, and `#R` may also be useful in controlling the input radix in which rationals are parsed; see Sharpsign B, Sharpsign O, Sharpsign X, and Sharpsign R.

This section summarizes the full syntax for numbers.