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Has any one used IQmath lib. for solving x^(1/3) on F28x ? I need some help. regards xufeihx
Well, I haven't solved the exact form but have similar equations in my system .... one possible way to solve your equation is
_iq x, y; // Global Q = 24
y = _IQexp(_IQmpy(_IQ(.3333),_IQlog(x)));
I checked the above equation with few cases and it seems to work..... by the way, you will need the log fuction in IQlibrary which was recently posted in this forum by Lori.
Good luck.
Edit note: thread split http://e2e.ti.com/support/microcontrollers/tms320c2000_32-bit_real-time_mcus/f/171/t/62506.aspx