这是因为实际的源代码和变量绑定可以更改,这是建立在环境或者构建宏预处理程序指令的时间定义的基础上的。
This is because the actual source code and the variable binding can change, based on the environment or the build time definitions of macros and preprocessor commands.
读写前一步长下的时间在表5.2.1里的宏中加入下标_M1就可以得到前一次步长时间下(t-⊿t)的变量的值。
The M1 suffix can be generally applied to the macros in Table 5.2.1 to allow access to the value of the variable at the previous time step (i. e.
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