Update promotion (#394)

Solves the issue with `stepplot` in #378
JuliaControl · Nov 14, 2020 · e9837ee · e9837ee
1 parent f6e1337
commit e9837ee
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/timeresp.jl b/src/timeresp.jl
@@ -165,7 +165,7 @@ function lsim(sys::AbstractStateSpace, u::Function, t::AbstractVector;
     elseif !(u0 isa Number && nu == 1) && (size(u0) != (nu,) && size(u0) != (nu,1))
         error("return value of u must be of size nu")
     end
-    T = promote_type(Float64, eltype(x0))
+    T = promote_type(Float64, eltype(x0), numeric_type(sys))
 
     dt = T(t[2] - t[1])