Mathematical Recreations

Mathematical Recreations at the Casino

Coniputer Recreations

I t is due cause for wonder 1hat mole­ cules of water "know" how to frame the elaborate syrr.metries of a snow­ flake. There is no architect directing the assembly, and (he molecules themselves carry within them no template for the crystalline form. Pattern on a large scale e.merge~ entirely from the shorl-range in:eractiollS of many identical \lnits. Each molecule responds only 10 [be in· tJue...

Tehranian Elderly People’s Experiences About Leisure Time Activities and Recreations

Objectives: The aim of this study was to explain the various style of leisure activity and recreation of elderly people in Tehran. Methods & Materials: To achieve this purpose, 17 older participants within the age range of 65-86 years who were selected through purposeful sampling undertook semi structured interviews. A conventional qualitative content analysis was used for analyzing the data...

Mathematical Mathematical User Interfaces

Taking Mathematica and xThink as representatives of the state of the art in interactive mathematics, we argue conventional mathematical user interfaces leave much to be desired, because they separate the mathematics from the context of the user interface, which remains as unmathematical as ever. We put the usability of such systems into mathematical perspective, and compare the conventional app...

tehranian elderly people’s experiences about leisure time activities and recreations

objectives: the aim of this study was to explain the various style of leisure activity and recreation of elderly people in tehran. methods & materials: to achieve this purpose, 17 older participants within the age range of 65-86 years who were selected through purposeful sampling undertook semi structured interviews. a conventional qualitative content analysis was used for analyzing the data. r...