于是Graphics3D[Arrow[{{0, 0, 0}, {1, 1, 1}}]]可以画出起点在原点的（1,1,1）向量 我认为是：Graphics3D[Line{{0,0,0},{1,1,1}}]建议你到学问社区的mathematica小组中多看看，那是个资源丰富的论坛，我们最近都想讨论一下图形动画的问题呢有表达式直接用Plot3D[]没有就画点ListPlo...
Object-vector (OV) cells are cells in the medial entorhinal cortex (MEC) that track an animal’s distance and direction to objects in the environment. Their firing fields are defined by vectorial relationships to free-standing 3-dimensional (3D) objects
The fourth state is the reflection of the second one. Note that the axes on the first one are a bit different than for the other three. While it is easy to make more plots, it is more fun to play around with them in Mathematica where you get to rotate them and easier can see the...
Mathematica contains functions that perform most of the operations discussed here. 1. Orthogonalize[{v1,v2,...},Method->GramSchmidt] returns an orthonormal set of vectors given the set of vectors {v1,v2,…,vn}. Note that this command does not illustrate each step of the Gram–Schmidt pro...
GNU Metafile (plotutils / libplot) Skencil(http://www.skencil.org) Mathematica via ImageMagick to any format supported by ImageMagick SWF Ghostscript an interpreter for the PostScript language and for PDF(一个PostScript和PDF的解析器) 很多的虚拟PDF打印机程序都是依靠它来实现postscript到PDF的转换工...