Weird Division [SOLVED]

[scanan]

hi,
what could be the problem ?
ccs compiler ver 4.135
PIC18F45K80

[Ttelmah]

First, _what compiler version_.
This is one of the key things that must be said for any problem like this.
However, printf on a lot of CCS versions, gives 'unusual' results, if it is used without a width limit. Try with %8.6f.

[scanan]

[Ttelmah]

That is certainly round the area where the problem existed if you did not limit the width. Have you tried with the width limit? (understand the value will still print exactly the same, since if the digits in front of the decimal make it overflow the specified width, the format will automatically expand to give the space required). Also since a 'float' only has just over 6 digits of real precision, printing 6 decimals is rather pointless....

Have two versions later (works), and one a couple older. On the older one, it goes wrong in all sorts of ways. Changed the format to %9.8f, and it started working. So you are almost certainly right in the area where there were problems if you specified &f without a width.

[scanan]

Thanks for your suggestions.
After some trial I figure out that x.4 is ok.
But 5 6 decimal results as error.
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Dr Suleyman CANAN
R&D Electronic Engineer
https://suleymancanan.wordpress.com

Do whatever you do with amateur spirit -
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