#include <project.h>
#include <ADXL345.h>
#include "math.h"
int main()
{
int st_speed=30; // m/s
int x_axis = 10; // in meter
float g = 9.807; // in m/s^2
void ADXL_Init();
CyGlobalIntEnable; /* Enable global interrupts. */
I2C_ADXL_Start();
calc_Angle_x = (1/2*asin(x_axis*g/st_speed*st_speed))*((180.0)/3.14);
for(;;)
{
why does calc_Angle_x return nan(0x8000000000000)and what nan means?
It supposed to return 3.129462438 degree
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