Merge 5df6db0 into f1b484a

ketch · Oct 2, 2019 · f97a1a7 · f97a1a7
2 parents f1b484a + 5df6db0
commit f97a1a7
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/nodepy/low_storage_rk.py b/nodepy/low_storage_rk.py
@@ -675,6 +675,22 @@ def load_2R(name):
                     0.31862993413251])
         descript='2R Method of Calvo'
         a=b[:-1]+g
+    elif name=='RK34[2R]C':
+        fullname='RK3(2)4[2R+]C'
+        shortname = 'RK342RC'
+        descript='A 2R Method of Kennedy et. al.'
+        regs=2
+        a=np.array([11847461282814./36547543011857,
+                    3943225443063./ 7078155732230,
+                    -346793006927./ 4029903576067])
+        b=np.array([1017324711453./ 9774461848756,
+                    8237718856693./13685301971492,
+                    57731312506979./19404895981398,
+                    -101169746363290./37734290219643])
+        bhat=np.array([15763415370699./46270243929542,
+                       514528521746./ 5659431552419,
+                       27030193851939./ 9429696342944,
+                       -69544964788955./30262026368149])
     elif name=='RK45[2R]C':
         fullname='RK4(3)5[2R+]C'
         shortname = 'RK452RC'