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搬家
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Oct. 18th, 2005 @ 01:14 pm
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终于下定决心在此搬家了。毕竟在网上申请的免费空间总是由种种的限制吧。
想要光降的,还请略移尊步。只是目前还荒凉得紧,连蓬荜之类,还需要待春来再发呢。 |
今天去富士施乐面试的时候遇到的一道题,半天没有解出来。甚是郁闷。晚上回家在宝宝的帮助下,终于搞定了,如果富士施乐的工作因为这个而没有被录取的话,将是对我自以为还不错的高中数学的一次嘲讽吧。立此存照。 题目,已知对于数列A[n]有,A[0]=10000,A[n]=A[n-1]*(1+x) -K,(其中x和K为常数)。求A[n]。
[参考解法]: ∵ A[n]=A[n-1]*(1+x) -K ① ∴ A[n-1]=A[n-2]*(1+x) -K ② ∴ ①-②得,A[n]-A[n-1]=(A[n-1]-A[n-2])*(1+x) ∴ (A[n]-A[n-1])/(A[n-1]-A[n-2])=(1+x) ③ 由③往下递推得: (A[n-1]-A[n-2])/(A[n-2]-A[n-3])=(1+x) ④ (A[n-2]-A[n-3])/(A[n-3]-A[n-4])=(1+x) ⑤ ...... (A[3]-A[2])/(A[2]-A[1])=(1+x) (A[2]-A[1])/(A[1]-A[0])=(1+x) 以上各等式两边分别相乘可得: (A[n-1]-A[n-2])/(A[1]-A[0])=(1+x)^(n-2) ∴ A[n-1]-A[n-2]=(A[1]-A[0])*(1+x)^(n-2) ∴ A[n]-A[n-1]=(A[1]-A[0])*(1+x)^(n-1) 而且,∵ A[n]=A[n-1]*(1+x) -K ∴ A[n]-A[n-1] = A[n-1]*x-K ∴ A[n-1]*x-K = (A[1]-A[0])*(1+x)^(n-1) ∴ A[n-1]=((A[1]-A[0])*(1+x)^(n-1)+K)/x ⑥ ∴ A[n]=((A[1]-A[0])*(1+x)^n+K)/x 而且,又∵ A[n]=A[n-1]*(1+x) -K,A[0]=10000 ∴ A[1] = A[0]*(1+x)-K = 10000*(1+x)-K, ∴最后的结论是:A[n]=((10000*x-K)*(1+x)^n+K)/x
好了,以后,所有银行还贷的问题就这么计算吧. |
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如是我闻
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Jun. 26th, 2005 @ 11:25 pm
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Bing 说: 有谁没谁的,自己还是过自己的日子,过得好是对得起自己,我反正是这么想的
想起了当年看张爱玲. |
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生日记(1)
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May. 18th, 2005 @ 01:04 pm
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原本打算多写一些然后再发上来的;可惜这几天一直不能安心下来。也罢,先放这力凉凉,回头的空了几许来罗嗦吧。 ---------------------------------------------------------------------------------------------------- [21:07]=> You take care,I am missing you so much. [21:09]<= Only now?;) ,Missing you too. [21:13]=> Heng!Bye-bye. [21:15]<= Ha,hug:).I had got my train seat now.It is seem not so old. [21:56]<= My train departure from shanghai station now.what are you doing now ,baby? [22:04]=> Eating watermelon,and missing you. [22:07]<= I am smiled when saw your sms,did you feel it? [22:09]=> Your smile is in my eyes in my mind and in my heart. [22:14]<= So I can sleep now!You had better go to bed as early as you can,ok?baby. [22:21]=> Ok.Don't get cold. [22:26]<= En,take care yourself for me.my boy.good night:) [00:01]=> Pangzi,Wish you a happy birthday,happy everyday,and happier everyday with me! [00:06]<= Shou Dao Le!Really first one and of course the most importent one.But if you had slept,I will feel more pleasure ,I thnk. [00:12]=> I sleep now.Just to wish you.Not much else I can do. [00:15]<= You had given me the best one,and had done all things you can now,my boy.ok,may you had a good dream ,with me.;) (=>是宝宝发过的,<=是我的回复) 还记得路遥的<<平凡的世界>>的开篇语是“早晨是从中午开始的”,我这个特殊的一天是从上面这段甜言蜜语的短信开始的。 遥想当年,尽管孙少安/孙少平的生活离我们相去十万八千里,但是大学的时候,魔心作崇竟然没有稍微消耗掉我们这一班人对这本小说的热情。以至于大四的时候,虽说不得人手一册,平均一下一个宿舍好几本也是有的;那精神头儿大有当年林副主席的红宝书的盛况。对于这样一个一向视文科生和文艺为粪土的传统三流理工科大学来说,这不能不说是个异数。当然这都是题外话,与我今天要说的无关。 一个常时不太喜欢甜言蜜语的人,发了些如此这般的SMS一定有他的原因。常常自嘲自己小富即安的小农意思深重;这不,才就这么几句简简单单的SMS,就搞得自己有些淡淡的意外和隐隐的兴奋;和衣而眠甚至连对面躺在下铺抠脚丫的大叔也可以不再留心。只是,其实自己又何尝不知道,这原因无非就是是因为今天没有如往常一般的家里的电脑前面,开着摄像头和麦克风,陪着宝宝有一搭没一搭的闲话着各自忙或各自的事情;无非就是因为今天是我的生日;无非就是我在生日前的冷雨夜里独行千里远涉江湖。年少的时候,没有传统也没有条件为小孩子的生日专门有个什么特典,最多也就是生日当天早上,妈妈给煮个鸡蛋罢了。大约是从此留下了的阴影,因而整个青春期的时候都极度盼望着能够有人为自己张罗出一场像样生日的盛会;只可惜命薄,到底没有找到那个心甘情愿为自己张罗生日的人来。记得大三的时候最是好笑。当日黄昏心情烦躁的我,拉着宿舍里唯二的俩同学就跑到学校大门口的川味大吃了一通。食毕买单走人,全然不理会还没反应过来是咋回事儿的哥俩;事后也再没提此事,就像我从来都不曾跟他们提起过那天是我生日一样。很多事情知道就好,没必要嚷嚷出来;有些事情做了就好,没必要天下皆知,毕竟祥林嫂和宣传队都不待见于人的。也或许正是如此,这几年来,慢慢的倒把这过生日的事情淡忘了下来。香港有句大俗话:友情饮水饱;通俗了些,却也有它的道理。横竖日子重要过的,欢喜也罢忧伤也罢,单单的选出一个日子来别出心裁一番就真的可以永远幸福?毕竟柴米油盐的算计着过日子才是正理。 因而我赶以前安身的城市办理一些琐碎的事情,没有管它是不是生日不生日的。夜深后灯灭了。而我老人家就在这样的环境里美滋滋的踏上了北上的路,全不管车内汗味潮味混杂一起,全不管旁座鼾声如雷车轮隆隆,全不管车外春雨潇潇一路从江南赶到北面;因着几句暖人的话,一路氤氲温暖着,还真就是一梦江南。 西方人说上帝是公平的;东方老祖宗说福兮祸之所倚;话虽不同但意思大抵都是相同。也许正因了这句吉言,才是这特殊的一天如此的精彩; |
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闲人忙事
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May. 8th, 2005 @ 09:52 pm
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昨天A同学打电话来说,B同学大老远的来到了上海。B是大学同屋,当时还算要好。打电话问B,B说是因为C和D结婚,所以过来了。C和D是以前大学兄弟班的一对班对儿。与男生C甚熟,与女生D熟悉,都不到要好的地步。但是B和C因为共同的爱好甚是相契。所以相约今日去参加B和C的婚礼。晚上与A、B和其他另外一帮子同学一起吃饭唱K时,A说不大想去参加,因为没受到邀请。其言灼灼其辞颇恳切,去也不是不去也不是,颇为难。今天早上好歹还是短信B同学说我和A不去参加B和C的婚礼了。 SMS是发了,不过一日都心神恍惚的,好比赖了楼下小卖铺的帐一样。 晚上接到在日本的E同学的电话,说要给我介绍一个回成都的工作。 晕,这么忙碌的一天----当然不是我,是指我的大学同学们。 |
| » 哈哈,有智慧的人 |
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在祭文中,宋楚瑜一开始就念到“公元2005年中华民国5月6日”。不熟悉古文笔法的人,看到这样的时间表述法,一定满头雾水,甚至会认为是宋楚瑜念错了。其实,这里头是有大学问的,那就是孔子作《春秋经》的“春秋笔法”。 《春秋经》的第一句就是“元年春,王正月”。此处的“元年春”是指鲁隐公元年的春天,“王正月”是指周王室制定的历法的正月。在春秋时期,不同诸侯国和周王室是可以有不同的纪年方式的,比如鲁隐公元年同时也是周平王四十九年,但是纪月方式只能根据王室历法。这就是所谓的“正朔”,也就是正统。
May. 7th, 2005 @ 10:00 am
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| » 听力练习:Word of Millennium |
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Ask Jone Moth[Morse],publisher of Marrim[Merriam-]webster dictionaries,xxxx[to name] the world that defines the close of millennium and he dosen't hazadate[hesitate]:"Internet". "No other word has become part of people's life[lives] so quickly all[or] that[has] had such (an) in pact[impact],"he says. The Internet has sweeping to[swept into] the American vocabulary and given birth to so many new words and phrases--"Meshurson[netizen]","charshrun[chatroom]",and "home page".amorunmu[among them], that you[it] has come to represent (an) era in such a[social] history,and remarkablly[remarkably] "issulent[Internet]" has many should[managed to] become the most navitive[signaficant] word of this century in listing the dekiete[less than a decade]. As marerm[Merriam] ,you will any[new words earn a] in the dictionary simply by repeat(ed) of use in the popular prectes[press].Marerm's[Merriam's] lexicogrophers spend a large pass of guy[part of their] day reading newspaper(s),magzine(s) and now internet publications. "We first start(ed) the thing[seeing] a number of citations in 1995[1994].And by 1998,it was a stabulished[established] in the dictionary,"Moth[Morse] says."It was just a standing[astounding]". Just a century ago, another form of communication swating[swept] into the language.In the 1898 edition of Marry[Merriam-] Webster's colleagua[Collegiate] dictionary,the whole[hot new] word was "tellfluen[telephone]". It brought messave[massive] social change and we share it a[reshaped the] way people did business,just as the internet is doing today. "Tellfluen[Telephone]" was no easy linqueside[linguistic] act to follow.It help(ed) bring you[into] to popular xxx[useage] a wilde[wide] world range of new worlds and phrases---ECC nones[busy signals],wrong numbers,whose[voice] mail,sell friends[cell phone] .It also get[gave] the United States as[its] standard greeting:Hello. But "Internet" is holding in xxx[its own],in path[part] by bring with [brrowsing words] from old technology[technologies],and given them new millennium[meaning] such as "bookmark","copy" and "browser". Indeed,"Internet" has created the[a] new vocabulary that has come to represent the[a] history for[histical] air[era] of change. 总结: 情况和前日相似. 另外就是选题不太适当,以当前的速度完成这篇听写时间太长.
Apr. 30th, 2005 @ 12:16 am
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| » 听力练习:Time Ball III |
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"This will mind[remained] available[a viable] singaling method on the[through] much of the 19th century.They were dropped avarent[well into] the 20th century.At the turn of century 100 years ago,they were approxymately[approximately] two dozen in the United States that were stone[still in] used." Time balls normally fell at the[noon] local time in the United States and (at) 1 p.m. in Europe,The beginning of the ball[fall] mark in[marking] exact time.But this even[year] (would see) the even[them] drop (at) may not be[midnight] locally. The first time ball,about one and a half meters in diamiter[diameter], will[were] made of wood and laser[leather] and hoist(ed) mannuly[mannualy] by verg,and it[rope to] dropp(ed) by gravity.abenchurly[Eventually] in several instances, a litticle meters in makenuthem xxxx [electrical motors or mechanism using water or air pressure] were employed.And in some time,mattirial[matterials] is changed.The Greewich ball is an[now] aluminum.For this new year,some time balls will have (a) local flavor. "Miami will be raising an orange ,I understand a land[Atlanta] of[will] drop a peagon[peach]." Steven Dick says San Francisco xxxxx[is to join] the event next year,when the U.S Naval Observotry again(st) from[sponsor an] internationnal time ball drop to signal what he say (it) is the really start of (the) new Millennum. 总结: 1),对部分单词没有反应。remain/viable/fall/midnight/diameter/Eventually/electrical/Atlanta/sponsor 2),听错部分单词.will mind--remained/available-- viable/avarent--well into/stone--still in/ball--fall/may not be--midnight/will--were/laser--leather/a land--Atlanta/peagon-peach/.听错的原因一是单词不很熟悉;另外就是遇到一些连读的情况. 3),对于长句子出现了一整句都没有听出来的情况.approxymately--approximately/diamiter--diameter/mannuly--mannualy/mattirial--matterials/ 4),单词拼写错误.
Apr. 29th, 2005 @ 12:47 am
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| » 听力练习:Time Ball II |
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In this age of ultra(-)high technology,many places around the world were[will] marked[mark] the thought[start] of new year in the[an] old-fashion(ed) way.There[They] were[will] five[revive] of[a] 19th century navel[naval] tradtion by dropping time balls when 2000 arrive(s).20 sides[sites] on six continents will observe a tradition best amplify[exemplified] by the lering[lowering] of large[lighted] time ball in New York city. "As the new year sweeps around the world,begining[beginning] at (the) international dayline[Date Line],we will[are] going to have a[the] time balls droping."Steven Dick is a historian at the U.S. Naval Observetory[Observatory] ,the institution (that) maitain(s) the U.S. xxx a[master] clock. "Everyone liven in New York without[is familiar with] the time ball in News York's time square[Times Square] ,but they had (a) real function in the past.In the 19th century, these were visual time signals which (were) used (to) given[give the] time." Mr Dick says the British Navy dropped the first time ball in Portsmail[Portsmouth],England in 1829.the first U.S. time ball dropped[fell] in Washinton in 1844.
总结: 1),单词听音不准:were--will/thought--start/dayline--date line/. 2),有生词的情况下,不能继续整句上把握句子,导致后面的句子乱套了.revive/exempliy/fell. 3),有拼写错误。naval/date line. 4),连读容易上当。Times Square.
Apr. 27th, 2005 @ 10:28 pm
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| » 听力练习:Time Ball |
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The time ball was originally used as a real[marine] time-keeper.The Granwich[Greenwich]time ball is set [said] to be the world's first public time signal.The ball was [is] automaticly [automatically] rise [raised] halfway (up) to the rob [mast] at 12:55 p.m.,reach [to the] top at 12:00[12:58] p.m.,and drops (at) 1 pm.Around 150 public time balls are known (or) reported to the belingstor??[have been installed] around the world after that at Granwich[Greenwich] in 1833.The U.S. labour of[Naval] Obsevertary[Observatory] droped[dropped] the first time ball in the United Stated[States] in 1844.Time ball was[balls were] used in many cities around the U.S. during the 19(th) century.As[At] the turn of the 20(th) century dozens of time balls were been[being] droped[dropped] around the world.A few time balls are still ceremonily[ceremonially] droped[dropped] around the world ,ranging from New England[Zealand] to the old oil xxx[Royal Observatory] in Granwich[Greenwich].
Apr. 26th, 2005 @ 10:29 pm
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