Update firk_perform_step.jl

Shreyas-Ekanathan · Sep 3, 2024 · 71e13ef · 71e13ef
1 parent 8574f04
commit 71e13ef
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/OrdinaryDiffEqFIRK/src/firk_perform_step.jl b/lib/OrdinaryDiffEqFIRK/src/firk_perform_step.jl
@@ -1769,7 +1769,7 @@ end
     if integrator.EEst <= oneunit(integrator.EEst)
         cache.dtprev = dt
         if alg.extrapolant != :constant
-            derivatives = Matrix{Any}(undef, num_stages, num_stages)
+            derivatives = Matrix{typeof(u)}(undef, num_stages, num_stages)
             pushfirst!(c, 0)
             pushfirst!(z, map(zero, u))
             for i in 1 : num_stages