攝氏23度
天氣好，心情自然靚~~我的心情是天氣dependent的。
這個學期一門課叫Optimization Methods。
如果要optimize你的happiness function，要怎樣formulate？
有甚麼variables？有甚麼constraints？
(x2,x3,x4 = main motivation to go back home after graduation :P)
x1= hours of sleep
x2= temperature/weather
x3= delicious food intake
x4= valuable time with family and friends
x5= personal achievements
x6=no. of intellectual stimulation
x7= amount of new knowledge gained
x8= no. of leng jai / gar jai i met per day
x9= funny youtube videos / movies
x10= cash inflow /stock gain
x11= health
x12= meeting new people
x13=time spent on writing blogs
x14= days spent on traveling
x15=quality of dreams
x16=access to McWings
x17=solitude
..
.
impromptuz 