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Need to type a formula

 
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E_KARVELAs



Joined: 14 Feb 2007
Posts: 46
Location: Greece & Cyprus

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Need to type a formula
PostPosted: Wed Apr 02, 2008 5:05 pm     Reply with quote
HI
i need to type the formula
But i have errors:
Code:


       float altimeter;

       long garo_long;

       altimeter=(1.0-(BARO_long/10132)^(0.19026) )*288.15)  /0.00198122;



Error Only integers are supported for this operation Sad
Is there any ather way i can type this formula on C.
Thanks
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PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed Apr 02, 2008 5:25 pm     Reply with quote
Download the CCS manual. Keep it on your Windows desktop.
http://www.ccsinfo.com/downloads/CReferenceManual.pdf

Look in this section:
Quote:
BUILT-IN-FUNCTIONS

STANDARD
C MATH

You will see a list of 26 math functions. Look at the POW() function.
Your formula requires floating point math. Also look in the math.h file:
Quote:
c:\program files\picc\drivers\math.h
E_KARVELAs



Joined: 14 Feb 2007
Posts: 46
Location: Greece & Cyprus

View user's profile Send private message

PostPosted: Wed Apr 02, 2008 5:50 pm     Reply with quote
PCM programmer wrote:
Download the CCS manual. Keep it on your Windows desktop.
http://www.ccsinfo.com/downloads/CReferenceManual.pdf

Look in this section:
Quote:
BUILT-IN-FUNCTIONS

STANDARD
C MATH

You will see a list of 26 math functions. Look at the POW() function.
Your formula requires floating point math. Also look in the math.h file:
Quote:
c:\program files\picc\drivers\math.h


Thank u i advance issue fixed.Very Happy
Also did what u say from now i should read more carefully the manual Shocked there is a lot of info from i mentioned.
Something last WoW Surprised ROM memory increased 11% on pic18f4523 after including math.c
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