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use Math::Complex; use strict; my $x = 1+1*i; print $x*undef;
Use of uninitialized value $z2 in multiplication (*) at /usr/share/per +l/5.14/Math/Complex.pm line 471. Use of uninitialized value $z2 in multiplication (*) at /usr/share/per +l/5.14/Math/Complex.pm line 471. 0