arXiv subjects

Hanna A. Parhusip

Publications and source records attributed to Hanna A. Parhusip.

2 recordsLinked to original sources

arXiv2017

Innovating Mathematics by Research Approaches in Indonesia from Middle Schools to Undergraduates

Innovating mathematics by research approaches in Indonesia from middle schools to undergraduates are explained here where geometry is typical example to be innovated. Topics in plane geometry to be platonic solids and non platonic solids such as cylinder and spheres are innovated to be new surfaces and media. Topics in calculus and complex functions particularly parametric curves are used to be new curves for curves stitching, motifs in several kinds of souvenirs and accessories. Additionally, local culture is introduced through batik painting activity using algebraic surfaces drawn with Surfer. Leonardo Dome and Leonardo Bridge with Rinus Reolofs like are introduced to attract students for mathematical sports activities.

math.HO↗

arXiv2017

Innovation of Parametric Plane Curve and Algebraic Surfaces for Motifs of Batik

Innovation on motifs of batiks are shown here. Mathematical approach such as parametric plane curves and algebraic surfaces are introduced to be the novelty of this research. The specific parametric plane curve used in this paper is the modified hypocycloid curve with the MATLAB program. The quadric surface is the particular algebraic surface employed in the Surfer program and varied into several surfaces. Furthermore, the gender issue on painting of batiks is examined by introducing Surfer Batik Workshop for 24 junior students. Though statistically the used number does not representative enough, more colors are used by girls than boys, the interest of painting motifs of batiksis greater in girls due to the present attitude of participants. Keywords : parametric plane curve, algebraic surface, quadric surface, Surfer, gender

math.HO↗