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 Robotics / Handy Board / 8620
8619  |  8621
Subject: 
Re: Interactive C
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Mon, 25 Feb 2002 17:14:33 GMT
Viewed: 
10065 times
  
You have to coerce the int to a float, e.g:

int i= 7;
float j= 3.;
float result;

result = j * (float)i;

The above should work.  Please let me know if not.

Fred



On Monday, February 25, 2002, at 11:26  AM, Brendan O'Hare wrote:

> (Perhaps this isn't the right place to ask questions about I.C.
> but it is
> related to the handy board so I will continue)
> I am trying to write a program that uses the lego sensors and
> multiplies
> them by constants that are floats. The expansion board returns
> integers for
> the lego sensors so I have a problem there as multiplying floats
> and ints
> isn't permitted by I.C. as far as I can make out. (the program
> returns an
> error saying that <float> * <int> isnt permitted)
> Also when I calculate these values I want to use them to determine
> how long
> to leave motors on. I am turning the motors on full, leaving them
> on using
> the mseconds() function and then turning the motors off - again
> using the
> mseconds() function in order to create an exact force on my model. This
> function requires long ints so I must convert my answers from
> above which
> are floats into long ints. Again my problem is that as far as I can see
> there is no way of converting between these different variables.
> Any ideas from anyone?
> Thanks,Brendan
> 



Message is in Reply To:
  Interactive C
 
(Perhaps this isn't the right place to ask questions about I.C. but it is related to the handy board so I will continue) I am trying to write a program that uses the lego sensors and multiplies them by constants that are floats. The expansion board (...) (25 years ago, 25-Feb-02, to lugnet.robotics.handyboard)

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