递推方程是由基于矩阵分解公式的交叉等式导出的。

The recursive equation is derived from a cross - identity basal on a formula of matrix analysis .

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如果你把一条复杂的公式分解成好几个部分，你可以尝试想象如果它是一个图表的话会是什么样子，或每个部分是如何相互影响的。

If you break apart a complex formula into components, you can try to imagine what it would like as a graph or how each component influences each other.

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因此位图的地位依然很重要，但是对于那些可以分解成基本形状的图像，比如图表、标志、和化学公式等等，矢量文件格式天生就具有较高的效率。

So bitmaps play a useful role, but for those images that can be decomposed into basic shapes such as diagrams, logos, and chemical formulas, a vector file format is inherently more efficient.

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