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## Notation

In this manual, we shall use several notations, which is described here

- The name of a function is written in a `typewriter` type
  `gcd()`, `gr()`
- For the description of a function, its argument is written in a slanted type. int, poly
- A file name is written in a ``typewriter type with single quotes'`
  ``dbxinit'`, ``asir_plot'`
- An example is indented and written in a `typewriter` type.

      [0] 1;
      1
      [1] quit;

- References are made by a `typewriter type bracketed by []`.
  `[Boehm,Weiser]`
- Arguments (actual parameters) of a function are optional when they are bracketed by `[]`'s. The repeatable items (including non-existence of the item) are bracketed by `[]*`'s.
  `setprec([n])`, `diff(rat[,varn]*)`
- The prompt from the shell (csh) is denoted, as it is, by `%`. The prompt, however, is denoted by `#`, when you are assumed to be working as the root, for example, at the installation.

      % cat afo
      afo
      bfo
      % su
      Password:XXXX
      # cp asir /usr/local/bin
      # exit
      %

- The rational integer ring is denoted by Z, the rational number field by Q, the real number field by R, and the complex number field by C.

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