try this ...
#include <SoftwareSerial.h>
long axe_x=0;
long axe_y=0;
long axe_z=0;
void setup()
{
Serial.begin(9600);
}
void loop()
{
axe_x = (90* axe_x + 10 * analogRead(A0)) / 100;
axe_y = (90* axe_y + 10 * analogRead(A1)) / 100;
axe_z = (90* axe_z + 10 * analogRead(A2)) / 100;
Serial.print(axe_x);
Serial.print("\n");
Serial.print(axe_y);
Serial.print("\n");
Serial.print(axe z);
Serial.print("\n");
}