make it

it's been raining these few days. so gloomy, and we all need a hug. i ate a mud pie while shopping for some christmas presents. it's cold like a hong kong winter today. last night i dreamt of a cloudy sky, and then it started whirling like a swirl pattern. in the dream i thought it was an anticyclone, but i know that anticyclones mean no clouds.

cold, tired and shivering is not a winning combination at the dentist's.

i thought hard, and i finally understood why we call it a non-decreasing order instead of an increasing order in graph theory. because 113357899 is not strictly increasing, but is non-decreasing!

it's time to revise power series and binomial theorem. and maybe some proofs for calculus.