Hello again 😉
I have a little problem with sprintf. Basically I am calculating the magnitude out of my measured real part and imaginary part (impedance).
real_comb_quad=(real_comb*real_comb);
imaginary_comb_quad=(imaginary_comb*imaginary_comb);
magnitude=(long double)(sqrt(real_comb_quad+imaginary_comb_quad));
The squared values (real_comb_quad, imaginary_comb_quad) are both "long" variables. I get 9 digits long numbers and via sprintf it is no problem to get them on the screen via UART. But when I then try to calculate the magnitude (row3), my output shows me "NAN".
sprintf(TransmitBuffer, "magnitude: %Lf\n", magnitude);
UART_1_PutString(TransmitBuffer);
My variable "magnitude" is "long double", so I choose %Lf as the argument for sprintf. I wrote a code with the same calculations but with small numbers and it is working fine. So is it a problem because of my huge values?
Thanks in advance for your response.
