use lowercase method names

jordanstephens · Dec 30, 2014 · 5493ffe · 5493ffe
1 parent 8ee0d59
commit 5493ffe
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Showing 4 changed files with 17 additions and 17 deletions.
diff --git a/lib/kepler/lagrange.rb b/lib/kepler/lagrange.rb
@@ -6,19 +6,19 @@ class << self
       include Stumpff
 
       def f(x, z, r)
-        1 - ((x ** 2) / r.magnitude) * C(z)
+        1 - ((x ** 2) / r.magnitude) * c(z)
       end
 
       def g(x, z, dt)
-        dt - ((1 / Math.sqrt(MU)) * (x ** 3) * S(z))
+        dt - ((1 / Math.sqrt(MU)) * (x ** 3) * s(z))
       end
 
       def df(x, z, r, r0)
-        (Math.sqrt(MU) / (r.magnitude * r0.magnitude)) * (S(z) * z - 1) * x
+        (Math.sqrt(MU) / (r.magnitude * r0.magnitude)) * (s(z) * z - 1) * x
       end
 
       def dg(x, z, r)
-        (1 - (((x ** 2) / r.magnitude) * C(z)))
+        (1 - (((x ** 2) / r.magnitude) * c(z)))
       end
     end
   end

diff --git a/lib/kepler/orbit.rb b/lib/kepler/orbit.rb
@@ -113,7 +113,7 @@ def universal_anomaly(dt)
 
     def update!(dt)
       x = universal_anomaly(dt)
-      z = UniversalFormulation.Z(x, a)
+      z = UniversalFormulation.z(x, a)
       r0 = @r
       v0 = @v
 

diff --git a/lib/kepler/stumpff.rb b/lib/kepler/stumpff.rb
@@ -1,6 +1,6 @@
 module Kepler
   module Stumpff
-    def C(z)
+    def c(z)
       if z > 0
         (1 - Math.cos(Math.sqrt(z))) / z
       elsif z < 0
@@ -10,7 +10,7 @@ def C(z)
       end
     end
 
-    def S(z)
+    def s(z)
       if z > 0
         (Math.sqrt(z) - Math.sin(Math.sqrt(z))) / (Math.sqrt(z) ** 3)
       elsif z < 0

diff --git a/lib/kepler/universal_formulation.rb b/lib/kepler/universal_formulation.rb
@@ -6,14 +6,14 @@ module UniversalFormulation
     class << self
       include Stumpff
 
-      def Z(x, a)
+      def z(x, a)
         (x ** 2) / a
       end
 
       def f(x, a, r, v, dt)
-        z = Z(x, a)
-        s = S(z)
-        c = C(z)
+        z = z(x, a)
+        s = s(z)
+        c = c(z)
 
         ((1 - (r.magnitude / a)) * s * (x ** 3)) +
         ((r.inner_product(v) / Math.sqrt(MU)) * c * (x ** 2)) +
@@ -22,19 +22,19 @@ def f(x, a, r, v, dt)
       end
 
       def dfdt(x, a, r, v)
-        z = Z(x, a)
-        s = S(z)
-        c = C(z)
+        z = z(x, a)
+        s = s(z)
+        c = c(z)
 
         (c * (x ** 2)) +
         ((r.inner_product(v) / Math.sqrt(MU)) * (1 - (s * z)) * x) +
         (r.magnitude * (1 - (c * z)))
       end
 
       def d2fdt(x, a, r, v)
-        z = Z(x, a)
-        s = S(z)
-        c = C(z)
+        z = z(x, a)
+        s = s(z)
+        c = c(z)
 
         ((1 - (r.magnitude / a)) * (1 - (s * z)) * x) +
         ((r.inner_product(v) / Math.sqrt(MU)) * (1 - (c * z)))