Rename RungeKutta to RungeKuttaU
This could be done with lambda instead, but we'll leave it. I need a
variant where time gets passed in and this was using that call
signature. I'd rather rename this one.
Change-Id: Ic8e473db599528e17efc0dc30a734679237a5cca
diff --git a/frc971/control_loops/runge_kutta.h b/frc971/control_loops/runge_kutta.h
index 020a25d..c3d47ed 100644
--- a/frc971/control_loops/runge_kutta.h
+++ b/frc971/control_loops/runge_kutta.h
@@ -23,7 +23,7 @@
// integrate. It must take 1 argument of type T. The integration starts at an
// initial value X, and integrates for dt.
template <typename F, typename T, typename Tu>
-T RungeKutta(const F &fn, T X, Tu U, double dt) {
+T RungeKuttaU(const F &fn, T X, Tu U, double dt) {
const double half_dt = dt * 0.5;
T k1 = fn(X, U);
T k2 = fn(X + half_dt * k1, U);