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1 J.JSSAC (2005) Vol. 11, No. 3,4, pp Noda2005 MathBlackBoard MathBlackBoard is a Java program based on the blackboard applet. We can use the blackboard applet with GUI operations. The blackboard applet has simple kernel as computational engine. In this paper, we describe improvements of MathBlackBoard. We developed MathBlackBoard as sets of objects. GUI operations of MathBlackBoard have been improved. And, we added a new button which use certain computer algebra systems as engine. 1 MathBlackBoard 1997 [1] Java Java [2] GUI 1 Java MathBlackBoard GUI MathBlackBoard CUI 1) OS [1] [email protected] 1) Character User Interface c 2005 Japan Society for Symbolic and Algebraic Computation

2 , : GUI Web Java 2.1 GUI GUI GUI 2 y = x y = x y = x

3 J.JSSAC Vol. 11, No. 3,4, y = x y 2: GUI (x +y) 2 Expand[] (x + y) 2 (x + y) 2 = x 2 +2xy +y 2 (x + y) 2 = x 2 + 2xy + y 2 3 a = x 1 y = a 3 3a a x 1 a = x 1 y = a 3 3a a = x a = x 1 a = x 1 y = a 3 3a 3 y = a 3 3a y = (x 1) 3 3(x 1) 3 3 a x 1 a = x 1 y = a 3 3a

80 11 3,4 2005 3:,, 1: (x-y)^2 Expand[] GUI (x y) 2 GUI GUI 1 1 OS OS GUI OS OS cp

4 , :,, 1: (x-y)^2 Expand[] GUI (x y) 2 GUI GUI 1 1 OS OS GUI OS OS cp copy GUI GUI GUI GUI 2.2 web Java Java web Java Windows Mac OS UNIX OS Java Java 1997 Java

J.JSSAC Vol. 11, No. 3,4, 2005 81 4: Palm OS,, 5: Palm OS,, JDK 1.1 2) Java PDA PDA PDA Java JDK 1.

1 API and Documentation http://java.sun.com/products/archive/jdk/1.

5 J.JSSAC Vol. 11, No. 3,4, : Palm OS,, 5: Palm OS,, JDK 1.1 2) Java PDA PDA PDA Java JDK 1.1 MIDP 3) Palm OS PersonalJava 4) Zaurus Java web Java PDA Java 2) Java Platform 1.1 API and Documentation 3) MIDP for Palm OS 4) PersonalJava Application Environment

6 , : Zaurus, 3 MathBlackBoard 3.1 Palm OS 5 OK OS GUI OS

7 J.JSSAC Vol. 11, No. 3,4, GUI GUI GUI GUI GUI J/Link 5) Mathematica OpenXM 6) Risa/Asir web Middle-regulator[3] Middle-regulator 3.2 MathBlackBoard Java Java Java MathBlackBoard MathBlackBoard OS GUI y = x 3a y = x 2 y = x 3a y = x 2 y = x 2 y = x 3a y = x OS GUI OS MathBlackBoard 2x 2 3 x 2 2x 2 3 x 2 5) Java Toolkit: J/Link 6) OpenXM (Open message exchange for Mathematics)

8 , x 2 3 x 2 x GUI MathBlackBoard GUI OS GUI (x + y + z) GUI GUI 6 Zaurus Zaurus 4 Palm OS y = x 2 y = (x 1) 2 y = x 2 y = (x 1) 2 y = x 2 y = x 2 y = x 2 y = (x 1) 2 y = x 2 y = x 2 y = (x 1) 2 y = x 2 y = x 2 +7 y = x 2 y = x y = x 2 + 7

9 J.JSSAC Vol. 11, No. 3,4, y = x 2 y = (x 1) 2 y = x y = (x 1) 2 4 MathBlackBoard MathBlackBoard 4.1 MathBlackBoard MathBlackBoard 6 7 GUI GUI GUI 7: MathBlackBoard MathBlackBoard 6

10 , Java Serializable 7 PDA MathBlackBoard MathBlackBoard MathBlackBoard Mathematica webmathematica OpenXM MathBlackBoard Mathematica J/Link webmathematica HTTP OpenXM OpenXM 7) JAR Windows Source Distribution (Download) openxm-head.tar.gz 7) OpenXM HEAD

11 J.JSSAC Vol. 11, No. 3,4, OpenXM OpenXM\src\OpenMath MathBlackBoard JDK 1.1 >javac -target 1.1 ORG\openxm\tam\OpenXM.java >del ORG\openxm\tam\*.java >jar cvf OpenXM.jar ORG OpenXM.jar CLASSPATH OpenXM.jar J/Link JLink.jar C:\Program Files\......\JLink.jar;OpenXM.jar;. OpenXM.jar OpenXM.jar OpenXM\src\OpenMath\testclient.java OX_ASIR OX_ASIR Middle-regulator[3] 5 MathBlackBoard 5.1 MathBlackBoard GUI

12 , MathBlackBoard MathBlackBoard MathBlackBoard [1] : Java,, [2] :, Vol9 No.1, pp.32-37, [3] DEGUCHI Hiroki: The Integrated Use of Computer Algebra Systems across the Internet, Proceedings of the 1998 Asian Symposium on Computer Mathematics, pp , 1998.

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fiš„v8.dvi (2001) 49 2 333 343 Java Jasp 1 2 3 4 2001 4 13 2001 9 17 Java Jasp (JAva based Statistical Processor) Jasp Jasp. Java. 1. Jasp CPU 1 106 8569 4 6 7; [email protected] 2 106 8569 4 6 7; [email protected]