Abstract: I explain the geometric interest hidden in MathArt created from rotation and spiral.
Title: Sun flowers
![](http://www.math-art-creation.com/wp-content/uploads/2020/03/向日葵.jpg)
Commentary: A seed spiral drawn using the function of the leaf phylloty. A spiral can be found on both the right-handed and left-handed, complex but beautiful. It can be seen that the three flower spirals change the coefficient subtly, and the degree of congestion in the central part changes.
Title: Spiral Five Flowers
![](http://www.math-art-creation.com/wp-content/uploads/2020/03/螺旋五花-729x1024.jpg)
Commentary: I devised to make the white river of S-shaped by 100 discs were piled up in the background. In the flow of the white river, the peach blooms falls while drawing a spiral. Can you get enlightenment? Or will you be drowned in desire?
Title: Poinsettia
![](http://www.math-art-creation.com/wp-content/uploads/2020/03/ポインセチア.jpg)
Commentary: This work is inspired by poinsettia, which is decorated at Christmas time. The octagonal star is changed color, and a subtle gradient is expressed by layering it while gradually shrinking with rotation.
Title: Pentagonal buds
![](http://www.math-art-creation.com/wp-content/uploads/2020/03/五角の蕾.jpg)
Commentary: The spiral is represented by rotating and gradually reducing the size of the pentagon. This pentagon is composed of five elements and the shadow. Its outer shape becomes a pentagon, and with the spiral it seems to symbolize repetition = eternity.