a fifth of a century well spent

officially twenty today. thanks to all who wished me happy birthday. to that one jerk in ohio, it's not cool calling at 5.30am to say happy birthday. it doesn't matter if it's already 8.30 there. but thanks, anyway.

amy came over and made me cheesecake, sam found a candle on the floor which probably has been there since the beginning age, and i've got myself a birthday cake. apparently sam also made spaghetti for lunch and john made some soup. it's good to have a housewife around ^_^. thanks sam, john, and amy.

at the church today there's a pretty girl with a lovely voice singing duet with her sister. she might be twenty-three or four, but i am so in love with her and her voice. it's like the angel of god actually came down to sing for me on my birthday.

anyone knows how to integrate Exp[-k r] / r dr ?

eDIT:

ugh, disregard the question above. i was supposed to take derivative, NOT integral.