diff --git a/src/numericalnim/ode.nim b/src/numericalnim/ode.nim
index 04b8637..f43169f 100644
--- a/src/numericalnim/ode.nim
+++ b/src/numericalnim/ode.nim
@@ -10,7 +10,9 @@ type
         dtMin*: float
         tStart*: float
 
-
+const fixedODE* = @["heun2", "ralston2", "kutta3", "heun3", "ralston3", "ssprk3", "ralston4", "kutta4", "rk4"]
+const adaptiveODE* = @["rk21", "bs32", "dopri54"]
+const allODE* = fixedODE.concat(adaptiveODE)
 
 proc newODEoptions*(dt = 1e-4, tol = 1e-4, dtMax = 1e-2, dtMin = 1e-8,
                     tStart = 0.0): ODEoptions =