Box: (xh,yh,zh) =(12.5 , 5 , 35)
Box: (xc,yc,zc) =(2.5 , 25 , 15)
Monte Carlo program to calculate weight
weight expected = 47250 gram
eta_min, eta_max = -5 , 5
phi_min, phi_max = 0 , 6.28319
set seed number to : 12459888
 itry=10000 total_weight=45828.7 ratio=0.96992
 itry=20000 total_weight=45215.5 ratio=0.956943
 itry=30000 total_weight=46734.2 ratio=0.989084
 itry=40000 total_weight=46623.9 ratio=0.986749
 itry=50000 total_weight=48022.7 ratio=1.01635
 itry=60000 total_weight=47495.5 ratio=1.0052
 itry=70000 total_weight=46912.1 ratio=0.992848
 itry=80000 total_weight=46348.8 ratio=0.980927
 itry=90000 total_weight=46390.4 ratio=0.981807
 itry=100000 total_weight=45938.9 ratio=0.972251
 itry=110000 total_weight=45895.5 ratio=0.971334
 itry=120000 total_weight=45951.9 ratio=0.972527
 itry=130000 total_weight=46020.2 ratio=0.973973
 itry=140000 total_weight=45828.1 ratio=0.969907
 itry=150000 total_weight=46042.6 ratio=0.974446
 itry=160000 total_weight=46322 ratio=0.980359
 itry=170000 total_weight=46326.2 ratio=0.980449
 itry=180000 total_weight=46407.3 ratio=0.982165
 itry=190000 total_weight=46569.1 ratio=0.98559
 itry=200000 total_weight=46395.2 ratio=0.98191
 itry=210000 total_weight=46460.5 ratio=0.983291
 itry=220000 total_weight=46605.9 ratio=0.986368
 itry=230000 total_weight=46723.8 ratio=0.988864
 itry=240000 total_weight=46770.2 ratio=0.989846
 itry=250000 total_weight=46726.4 ratio=0.988919
 itry=260000 total_weight=46850.4 ratio=0.991543
 itry=270000 total_weight=46932.2 ratio=0.993274
 itry=280000 total_weight=47017.9 ratio=0.995088
 itry=290000 total_weight=46927.2 ratio=0.993169
 itry=300000 total_weight=47118.3 ratio=0.997213