Converting Numbers To and From Strings
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- primitive: number->string n [radix]
Return a string holding the external representation of the number
N in the given RADIX. If N is inexact, a radix of 10 will be used.
- primitive: string->number string [radix]
Returns a number of the maximally precise representation expressed
by the given STRING. RADIX must be an exact integer, either 2, 8,
10, or 16. If supplied, RADIX is a default radix that may be
overridden by an explicit radix prefix in STRING (e.g. "#o177").
If RADIX is not supplied, then the default radix is 10. If string
is not a syntactically valid notation for a number, then
`string->number' returns #f. (r5rs)
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