The following expression should do what you want: (+ (string->number "1.2") 1)
If you're starting from a symbol, use symbol->string before string->number. Carl Eastlund On Mon, Sep 10, 2012 at 12:41 PM, Nikolaus Klepp <dr.kl...@gmx.at> wrote: > Hi all, > > In tinyscheme I can do this: > > > (+ (string->symbol "1.2") 1) > 2.2 > > In racket that does not work, because > > > (string->symbol "1.2") > '|1.2| > > which is not a number. I can use this workaround: > > > (+ (read (open-input-string "1.2")) 1) > 2.2 > > But is there a clean way to get the above line from tinyscheme working on > racket without that workaround? > > Nik > >
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