For my detailed professional activities, please refer to my CV.Founder of the Asian Technology Conference in Mathematics (ATCM).
Founder of the
Electronic Journal of Mathematics and Technology (eJMT).
Member of the International Program Committee of the ICTMT-8 (the 8th International Conference on Technology in Mathematics Teaching), Hradec Králové, Czech Republic, July 1-4, 2007.
Chairperson of the International Program Committee of the ATCM95, ATCM97, ATCM98, ATCM99, and ATCM00
Co-Chair of the International Program Committee of ATCM01, ATCM02, ATCM03, ATCM04, ATCM05, ATCM06 and ATCM07.
July 6-13, 2008: Present talks at the ICME 11 Mexico 2008, Monterrey, Mexico.
April 9-12, 2008: Present a talk at the NCTM 2008 Annual Meeting, Salt Lake City, Utah.
March 6-9, 2008: Present a session paper at the ICTCM, San Antonio, Texas.
January 6-9, 2008: Present a contributed paper at AMS/MAA Joint meeting, San Diego, CA.
June 18-22, 2007: invited as a plenary speaker at EARCOME 4, Malaysia. (A photo flash file)
May 7-15, 2007: Invited as a visiting professor at UNIVERSIDAD DIEGO PORTALES, Chile. (A photo flash file) (An article in Spanish)
Editor of the
Journal of Computational Methods in Sciences and
Chair of the Internet/Distance Learning/Web-Assisted Instruction Sessions and Program Committee Member of the Fifteen Annual International Conference on Technology in Collegiate Mathematics (ICTCM 2004), New Orleans, October 28-31, 2004.
Chair of the Internet/Distance Learning/Web-Assisted Instruction Sessions and Program Committee Member of the Fifteen Annual International Conference on Technology in Collegiate Mathematics (ICTCM 2003), October 30-November 2, 2003.
Program Committee member of IEEE International Workshop of Wireless and Mobile Technologies in Education, December 8-10, 2003.
Chair of the Internet/Distance Learning/Web-Assisted Instruction Sessions and Program Committee Member of the Fifteen Annual International Conference on Technology in Collegiate Mathematics (ICTCM 2002), October 31-November 3, 2002.
Program Committee Member of the Fourteenth Annual International Conference on Technology in Collegiate Mathematics (ICTCM 2001) on Internet/Distance Learning/Web-Assisted Instruction. (November 1-4, 2001)
Member of the Executive Committee of the GCSCE (Global Chinese Society of Computer Education) up to 2005.
Member of the Steering Committee of the GCCCE'2003, Nanjing China, December 6-9, 2003. (Global Chinese Conference on Computer Education.
Member of the Steering Committee of the GCCCE'2002, Beijing China, June 14-16, 2002. (Global Chinese Conference on Computer Education).
Member of the Program Committee of the GCCCE'2000, Singapore, May 29-31, 2000. (Global Chinese Conference on Computer Education).
Invited speaker at the 1998 Japan Society of Science and Technology Education, August 7-11, 1999.
Editorial member, HP APLET, sponsored by Hewlett-Pacard's Australian Calculator Operation, directed as promoting mathematics. .
A program committee member of ICCE98-Beijing (International Conference on Computers in Education, Beijing, China 14-17 October, 1998)
Cited at the Summer Issue 1997 Vol. 9 of T.I.M.E. (Technology in Mathematics Education) in Japanese.
Invited Speaker at ICTMT , Koblenz, Germany, September 29 - October 2, 1997. For text version of the first announcement of ICTMT3, click here .
Steering Committee member and invited speaker at the Global Chinese Conference in Computer Education ( GCCCE) (21 - 24, May,
GCCCE'98, GCCCE'99 and GCCCE'00.
For my detailed professional activities, please refer to my CV.
Summer presentations of 1996:
Teaching: Creating interactive teaching and learning material with Maple, MathView, Scientific WorkPlace (or Scientific Notebook), Java and etc. I am visiting Singapore for one year, click here for the project(s) that I am doing in Singapore. (June 97-May 98)
Research: Incorporate uneven partions and develop open and closed types of adaptive quadratures in one and two dimensions, (click here for example). The quadratures can be used in estimating (non absolute) integrals such as f(x)=(1/x)*sin(1/x) or f(x,y)=(1/xy)*sin(1/xy) directly without using transformation technique. Note that the functions mentioned above are Henstock integrable but not Lebesgue integrable.
- Integrals that Maple and Mathematica can't handle or give wrong answers.
- Example 1 Maple and Mathematica can't handle this function since the singular points are located along x = y.
- Example 2 Both Maple and Mathematica give answers 0, which are wrong. Since the double integral integral does not exist even if the repeated integrals is 0. This example shows that the existence of a double integral is essential for one to estimate its value since the existence and equality of the repeated integrals of a function (such as in this case) need not imply that the double integral of the function exists.
- Surveys on numerical integration
- More examples and my quadrature and cubature