examples show what happens when we request both a conversion and the optional places:

STR$(201.5, 16)

which gives us C9 (which equals 201, the integer part of 201.5 ) and

STR$(3.5, 2, 4)

which converts 3.5 into a binary number with 4 fractional places for .5 and returns 11.1000.

IN

IN (source$, match$ [, startpos[, wild$]]) returns the leftmost character position number where match$ was found in source$. Optional parameter startpos determines the position within source$ to begin the search (default=1). If startpos is negative, the search starts from position ABS(startpos) and proceeds backwards (More about ABS further below).

The value returned will be between 1 and LEN source$ if a match was found or 0 if a match is not found, startpos is 0, match$ or source$ are the empty string ("").

If you're not entirely sure of the spelling of the word you're looking for within the original string you have the option to use a wildcard¹ character which itself is user-definable. Any character you enter in wild$ or the copyright symbol © (ASCII 127), will become the wildcard character which you can then substitute in match$ for any character you're unsure about. Any characters in match$ which are the wildcard character will match any character in source$. If wild$ is the empty string (""), the wildcard character is ASCII 0. Here are some examples to better illustrate:

PRINT IN("Harry is awesome"," ")

Prints 6 on the screen as a space is a valid character while

PRINT IN("Harry is awesome","
         ",7)

Prints 9 as we told IN to start looking from position 7 onwards.

PRINT IN("Harry is awesome","
         ",-16)

will also return 9 as it's looking backwards and finally

PRINT IN("Here's
         Garry!","a%%y",1,"%")

prints 9 as we substituted any letter for the symbol % and the first string is located there. If however we modified the above slightly and made it:

PRINT IN("Here's
         Garry!","%r",1,"%")

we'd get 2 as the first match er for the %r is located there. If we then modified it a little further to:

PRINT IN("Here's
         Garry!","%r",5,"%")

it would have returned 10 as starting from position 5 the first match is the rr in Garry.

¹ A wildcard character is a character placeholder for any possible character