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1.#QO value in global variable
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Joined: Sat Oct 25, 2008 12:18 am
Posts: 19
1.#QO value in global variable
we are trying to program a holonomic drive and we are doing some sqrt(x^2 + y^2) .... stuff and get reasonable values in the first and 4th quadrants and MOST of the 3rd quadrant, but at maxX and maxY of the joystick, the global variable, which is a "float" becomes 1.#Q0 or 1.#Q0 as a value, and the motors stop. Any ideas??

Wed Jun 15, 2011 12:29 am
Rookie

Joined: Wed Feb 24, 2010 11:43 pm
Posts: 34
Re: 1.#QO value in global variable
a couple things,

1. It was pointed out to me that the ^ operator is not an exponent, but a shift...

2. You might be exceeding the limits of a type somewhere, so you might want to consider casting the value first
 Code:float gfValue = sqrt( ((float) x * (float) x) + ((float) y * (float) y));

just a couple ideas.

Thu Jun 16, 2011 2:23 pm

Joined: Wed Mar 05, 2008 8:14 am
Posts: 3654
Location: Rotterdam, The Netherlands
Re: 1.#QO value in global variable
The ^ operator is bitwise xor, not shift. Shift is << for left shift and >> for right shift.

- Xander

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Fri Jun 17, 2011 7:34 am
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Joined: Wed Feb 24, 2010 11:43 pm
Posts: 34
Re: 1.#QO value in global variable
 mightor wrote:The ^ operator is bitwise xor, not shift. Shift is << for left shift and >> for right shift.- Xander

Thanks Xander!

You were the one that told me last time... and I didn't go back and look at my notes...

Wed Jun 29, 2011 8:02 am
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