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???
03/14/12 14:38
Read: 680 times


 
#186669 - negative float numbers
Responding to: Erik Malund's previous message
I have a calculation where the result can vary from -255 to + 255
My mistake. The result is first between -20 to +20 (which is actually an angle in degrees). float is needed because of the multiplication to achieve the angle.

The problem is that the 8051 doesn't actually recognise the negative float numbers when making an if statement like below:

	
        if(value<0)
	{			
		action1
	}
	
	if(value>= 0)
	{
		action2
	}

 


List of 19 messages in thread
TopicAuthorDate
I'm having problems calculating negative float values      Jeremy Vella      03/14/12 12:26      
   float values?      Erik Malund      03/14/12 13:11      
      65536 no      Anders Sandström      03/14/12 14:29      
      negative float numbers      Jeremy Vella      03/14/12 14:38      
         Two comparisons      Per Westermark      03/14/12 15:06      
         Insufficient justification      Andy Neil      03/16/12 00:12      
            re:insufficient justification      Jeremy Vella      03/16/12 02:45      
   how are numbers transmitted?      Stefan KAnev      03/14/12 15:49      
      serial Tx code      Jeremy Vella      03/14/12 16:13      
         Data type?      Per Westermark      03/14/12 19:41      
         Data type?      Per Westermark      03/14/12 19:41      
            serialangle data type      Jeremy Vella      03/15/12 02:43      
               Just a question of readability      Per Westermark      03/15/12 02:54      
                  re: just a question of readability      Jeremy Vella      03/15/12 04:08      
               why do you keep babbeling about 'float'      Erik Malund      03/15/12 07:59      
                  float reason      Jeremy Vella      03/15/12 08:30      
                     fixed point        Maarten Brock      03/15/12 08:54      
                        re:fixed point      Jeremy Vella      03/15/12 18:16      
               typecast      Stefan KAnev      03/15/12 08:07      

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