October 2006
How to Calculate Geometric Means
Geometric mean is often used to evaluate data covering several orders of magnitude, and sometimes for evaluating ratios, percentages, or other data sets bounded by zero. If your data covers a narrow range (I have seen it stated that the largest value must
Definition: Geometric mean
Geometric means are often useful summaries for highly skewed data. They are also natural for summarizing ratios. Don't use a geometric mean, though, if you have any negative or zero values in your data.
Harmony and Proportion: Palladio: The Geometric Mean
Here is a summary of the Arithmetic and Geometric means:
September 2006
數學家是怎麼思考的
你好奇「數學家是怎麼思考的」嗎？這本書可以為你解答。多倫多大學榮譽教授梭爾，用深入淺出的文字，娓娓道出數學家的思考智慧，而你只要具備高中數學程度，就能從本書中領會非歐幾何
August 2006
SciPy - SciPy.org
SciPy is open-source software for mathematics, science, and engineering. It is also the name of a very popular conference on scientific programming with Python.
Boost Graph Library - Python Bindings
The Boost Graph Library Python bindings (which we refer to as "BGL-Python") expose the functionality of the Boost Graph Library and Parallel Boost Graph Library as a Python package, allowing one to perform computation-intensive tasks on graphs (or network
NetworkX trac
by 1 otherNetworkX (NX) is a Python package for the creation, manipulation, and study of the structure, dynamics, and functions of complex networks.
Matplotlib / pylab - matlab style python plotting (plots, graphs, charts)
matplotlib is a python 2D plotting library which produces publication quality figures in a variety of hardcopy formats and interactive environments across platforms. matplotlib can be used in python scripts, the python and ipython shell (ala matlab or mat
統計，改變了世界
話說在英國劍橋的某天午后，有位女士聲稱，把茶加到牛奶裡，和把牛奶加到茶裡，兩種方法調出來的下午茶喝起來味道不同。在座的科學家都對她的說法嗤之以鼻，但有位來訪的瘦小紳士，R．A．費雪，提議要用科學的方法，來檢驗這位女士的假設……
為什麼公車一次來三班？
等公車、買樂透、約女朋友、洗熱水澡、躲霉運……，這些全都跟數學有關？羅勃‧伊斯威和傑瑞米‧溫德漢這兩位暢銷作家及猜謎大師聯手設局，誘惑你參加一場驚奇不斷的閱讀，並悄悄完成
賽局理論
作者運用個案來營造出賽局觀念的理論架構，迴避掉坊間以微積分與代數來描述的艱澀，從生活週遭的決策互動到國際關係的合縱連橫，涵蓋範圍包括經濟學、商學、政治選舉、公共政策、法律
July 2006
Putting mathematics on the Web with MathML
This note explains how to include MathML in Web pages in a way that makes it possible to be viewed on a large number of browsers. It also shows how to configure browsers to make them able to display MathML. Currently the browsers that will render the page
[ GTL ] The Graph Template Library
GTL, the Graph Template Library GTL can be seen as an extension of the Standard Template Library STL to graphs and fundamental graph algorithms.
JUNG - Java Universal Network/Graph Framework
by 5 othersJUNG — the Java Universal Network/Graph Framework--is a software library that provides a common and extendible language for the modeling, analysis, and visualization of data that can be represented as a graph or network. It is written in Java, which all
gef.tigris.org
The goal of the GEF project is to build a graph editing library that can be used to construct many, high-quality graph editing applications. Some of GEF's features are: * A simple, concrete design that makes the framework easy to understand and extend. *
The Boost Graph Library
Graphs are mathematical abstractions that are useful for solving many types of problems in computer science. Consequently, these abstractions must also be represented in computer programs. A standardized generic interface for traversing graphs is of utmos
SGT Graphics Package
The Scientific Graphics Toolkit (SGT) facilitates easy development of platform independent, Java applications to produce highly interactive, flexible, publication quality, object oriented graphics of scientific data. Features include user settable or auto
Welcome to JGraphT - a free Java Graph Library
by 1 otherJGraphT is a free Java graph library that provides mathematical graph-theory objects and algorithms. JGraphT supports various types of graphs including:
隨機的致富陷阱
本書談的主題是明明靠運氣才完成的事，卻以非運氣（也就是需要靠人的技巧）的假面貌出現，或者被認為和運氣無關，以及推而廣之，明明是隨機現象，卻以非隨機（也就是早已決定好）的假
二項分布與大數法則
上面這種機率分布稱為二項分布。一般的二項分布是這樣的： 假設某事件的發生率為 p，而試驗做了 n 次。則 n 次中，某事件發生 x 次的機率為
機率與訊息
本文的目的有二：一來淺介訊息理論，二來藉訊息理論之介紹說明機率論的方法。 首先，我們回憶一下機率的基本概念。
漫談布朗運動
西元1827年，英國植物學家勞伯‧布朗 (Robert Brown) 利用一般的顯微鏡觀察懸浮於水中的花粉粒時，發現這些花粉粒會做連續快速而不規則的隨機移動，這種移動稱為布朗運動 (Brownian motion)。
馬可夫鏈的簡介
「不是互相獨立」也就是說互相關聯的意思，但是要樣相關呢？如何在相關中作一些簡單的分類呢？馬可夫鏈就是要描述在「相關」這個概念中最簡單的一種。
Poisson 分布
二項分布是離散型機率模型中最有名的一個，其次是 Poisson 分布，它可以看成為二項分布的一種極限情形。
