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Journal of Computers in…

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King, James	1
Mandell, Alan	1

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Computer Programs	2
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Reports - Descriptive	2

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Learning with Logo: The Affine Turtle: A Turtle that Can Draw Shadows.

Peer reviewed

King, James – Journal of Computers in Mathematics and Science Teaching, 1988

Explores the production of shadows for drawings using the LOGO computer language and Affine Geometry. Explains the methodology of the shadowing and lists the Affine Turtle procedures. Provides for different versions of LOGO. (MVL)

Descriptors: College Mathematics, Computer Graphics, Computer Oriented Programs, Computer Uses in Education

Calculating PI Using Historical Methods and Your Personal Computer.

Peer reviewed

Mandell, Alan – Journal of Computers in Mathematics and Science Teaching, 1989

Provides a software program for determining PI to the 15th place after the decimal. Explores the history of determining the value of PI from Archimedes to present computer methods. Investigates Wallis's, Liebniz's, and Buffon's methods. Written for Tandy GW-BASIC (IBM compatible) with 384K. Suggestions for Apple II's are given. (MVL)

Descriptors: Computer Oriented Programs, Computer Software, Computer Uses in Education, Courseware