It s a simple Parser That calculates mathematic operations.You give an input and it starts the calculation by showing you the parsing operation in real-time.
圆孔的夫琅和费衍射,以动画的形式表式衍射的过程,以及最后衍射的图样(来源于http://luobo.ycool.com/post.701424.html)-Round hole of Fraunhofer diffraction to the form of table-style animation of the process of diffraction, and the final diffraction pattern (from http://luobo.ycool.com/post.701424.html)