Singular Manual: def declarations

  | ### 4.5.1 def declarations Syntax: `def` name `=` expression `;` Purpose: defines an object of the same type as the right-hand side. Default: none Note: This is useful if the right-hand side may be of variable type as a consequence of a computation (e.g., ideal or module or matrix). It may also be used in procedures to give the basering a name which is local to the procedure. Example:
        def i=2;
        typeof(i);
      ==> int
See typeof.

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