hand made ; alminium cap is for cooling

[hatahata]

i try .

Code:

pi.bat
#!/usr/bin/env python
def f(x):
  return 4 / ( 1.0 + x**2 )
n = 10000000
sum = 0
step = 1.0 / n
for i in range(0, n):
  x = ( i + 0.5 ) * step
  sum += f(x)

pi = sum * step
print pi

Code:

temperature.bat
cat /sys/class/thermal/thermal_zone0/temp

with alminium cap


debian@pine64pro:~$ ./pi.bat ; ./temperature.bat

3.14159265359
46


ebian@pine64pro:~$ ./temperature.bat
40
debian@pine64pro:~$ ./temperature.bat
40
debian@pine64pro:~$ ./temperature.bat
40
debian@pine64pro:~$ ./temperature.bat
40


without alminium cap
debian@pine64pro:~$ ./pi.bat ; ./temperature.bat
3.14159265359
47


only 1 degree effect !
i am dissapointed and understand big alminium heat sink of odroid-c2 .