create s var

JuliaControl · Apr 26, 2023 · 10412ce · 10412ce
1 parent 95866c6
commit 10412ce
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/lib/ControlSystemsBase/test/test_conversion.jl b/lib/ControlSystemsBase/test/test_conversion.jl
@@ -62,6 +62,7 @@ H3 = zpk([(-1+im*sqrt(79))/8, (-1-im*sqrt(79))/8], [-3/2], 2)
 @test zpk(G3) ≈ H3 rtol=1e-15
 @test zpk(H3) == H3
 
+s = tf("s")
 @test_throws ErrorException delay(5)*((s+1))/((s+2)*(s+0.5))
 @test_throws ErrorException delay(5)*zpk((s+1))/zpk((s+2)*(s+0.5))