Miki_Sayaka
from Ils de France
fan of Puella Magi Madoka Magica
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Sidere mens eadem mutato
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Notes For Calculus Life Saver
3.2 the Left Side Limit and the Right Side Limit Please think about what happens to h(x) when x is really close to 3. If we get to the point of (3,1) from the left, we will get to the height of 1. But if we get to... -
致站长——如何设置自定义头像
怎么自定义头像啊啊啊啊啊啊啊啊啊啊啊啊啊啊 -
Notes For Calculus Life Saver
Chapter 3 Limits 3.1 the Fundamental Concept of Limit Suppose we start from the point on the function f, and we call it a. When x is really close to a but it is not a, what’s the value of f(x). There is an example... -
分享1789年法国人权宣言——转载自网络
Declaration of the Rights of Man and of the Citizen（1789） The representatives of the French people， organized as a National Assembly， believing that the ignorance， neglect， or contempt of the rights of man are the... -
分享1215年英国自由大宪章——转载自网络
THE MAGNA CARTA （The Great Charter） Preamble： John， by the grace of God， king of England， lord of Ireland， duke of Normandy and Aquitaine， and count of Anjou， to the archbishop， bishops，abbots， earls， barons，... -
读书之意义——5月28日演讲
读书之意义 今日余见着诸位，心中感慨莫名。余之讲演盖以无聊使人瞌睡而著称，又在今日这种浓阴的天气里，却看到这耐心的诸君，余首先先要表达心中之感激。 本次，我想要讲的题目是《读书之意义》。 近日来期末渐迫，尊师又屡次在年级大会上提起这“认清你学习的意义”或“明白你为什么而读书”云者。我觉得这很好，每个人都可有自己之理解。而余亦欲陈余之拙见，以抛砖引玉。... -
Notes For Calculus Life Saver（声明）
最近我看了一下，我以前写的存量已经不多了，而最近学习又比较紧张，又没有时间写新的，所以有可能以后的更新会慢一些，但希望还是能够保证每周更新一期罢——希望罢 -
Notes For Calculus Life Saver
2.4 Trigonometric Identity It’s very convenient to use the relationship between the six trig functions. First, we’ll notice that tan and cot can be presented by sin and cos. And you will probably see that .... -
Notes For Calculus Life Saver
2.3 the Graphs of Trig Functions It’s important to remember the graph of sin and cos. These functions are periodic. For example, we think about . The graph between 0 and 2π is the picture below. We say that sin is a... -
Notes For Calculus Life Saver
2.2 Extend the Domain of Trig Functions We have to be careful when we take the trig function (for instance tan, cot, sec and csc), because for some x, the function is not defined. For example, . However, we can take... -
Notes For Calculus Life Saver
Chapter 2. Trigonometry 2.1 Basic Knowledge First, we should review the concept of radian. If we turn round, we say we turn the radian of instead of rotate 360°. It sounds strange but there is a reason: a circle... -
议案——提交给Flog管理员委员会
本人提议设立本站站长，可无限期连任，为礼仪性质虚位站长，并在《宪规》中加入每届任期3个月，由Flog管理员委员会直接任命，第一届站长推荐为Moderator Zhou