Function: trunc (<expr>) Annotates the internal representation of the general expression <expr> so that it is displayed as if its sums were truncated Taylor series. <expr> is not otherwise modified.
(%i1) expr: x^2 + x + 1; 2 (%o1) x + x + 1 (%i2) trunc (expr); 2 (%o2) 1 + x + x + . . . (%i3) is (expr = trunc (expr)); (%o3) true
There are also some inexact matches for
?? trunc to see them.
(%o1) true (%i2)