How to stop matlab from truncating long decimal numbers
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Is there a way for a long string of decimal numbers like 0.92834387282837738 to not be truncated by matlab?? I was using it for a code (arithmetic coding) that requires precision and matlab truncating the numbers ruins everything.
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Answers (1)
madhan ravi
on 7 Jul 2019
The decimals are not truncated it’s just the appearance in command window:
doc format
doc sprintf
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Giuseppe Degan Di Dieco
on 26 Nov 2021
Hello Guys,
thanks for setting up this thread, it really helped me.
Indeed, the command
sprintf
is very useful to create string that meets the user's needs.
Best.
Steven Lord
on 26 Nov 2021
No, sprintf won't work if the number is truncated by being stored as a double precision number before it gets to sprintf.
sprintf('%0.100f', 0.0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789)
If as Walter Roberson suggested you'd converted this directly from text to a sym object:
s = sym('0.0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789');
vpa(s, 100)
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