Roots of a quadratic function: Difference between revisions

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 =={{header|PARI/GP}}==
+{{works with|PARI/GP|2.8.0+}}
+<lang parigp>roots(a,b,c)=polrootsreal(Pol([a,b,c]))</lang>
 {{trans|C}}
+Otherwise, coding directly:
 <lang parigp>roots(a,b,c)={
   b /= a;
@@ Line 1,465: / Line 1,469: @@
 };</lang>
+Either way,
-{{works with|PARI/GP|2.8.0+}}
-<lang parigp>roots(a,b,c)=polrootsreal(Pol([a,b,c]))</lang>
+<lang parigp>roots(1,-1e9,1)</lang>
+gives one root around 0.000000001000000000000000001 and one root around 999999999.999999999.
 =={{header|Pascal}}==