* {{Parameter|result$}} will contain the original version of {{Parameter|stringToDecompress$}}.
* Optional parameter {{Parameter|originalSize&}} can be used if the original size of the uncompressed data is known beforehand, which makes the decompression routine run more efficiently.
** If unspecified, decompression still works as expected, but may use more steps and need to allocate more memory internally.
==Availability==
* '''Version 1.4 and up'''.
{{PageExamples}}
''Example 1:'' Compressing a long string of text.
{{CodeStart}}
a$ = "The quick brown fox jumps over the lazy dog. "
{{Cl|PRINT}} "Original string (a$): "; a$
{{Cl|FOR}} i = 1 {{Cl|TO}} 15
a$ = a$ + a$
{{Cl|NEXT}}
{{Cl|PRINT}} "After concatenating it into itself several times, LEN(a$) ="; {{Cl|LEN}}(a$)
b$ = {{Cl|_DEFLATE$}}(a$)
{{Cl|PRINT}} "After using _DEFLATE$ to compress it, LEN ="; {{Cl|LEN}}(b$)
{{Cl|PRINT}} {{Cl|USING}} "(compressed size is #.###% of the original)"; (({{Cl|LEN}}(b$) * 100) / {{Cl|LEN}}(a$))
c$ = {{Cl|_INFLATE$}}(b$)
PRINT "After using _INFLATE$ to decompress it, LEN ="; {{Cl|LEN}}(c$)
{{CodeEnd}}
{{OutputStart}}
Original string (a$): The quick brown fox jumps over the lazy dog
After concatenating it into itself several times, LEN(a$) = 1474560
After using _DEFLATE$ to compress it, LEN = 4335
(compressed size is 0.295% of the original)
After using _INFLATE$ to decompress it, LEN = 1474560