Remove methods with equivalent in superclass

Author: jecisc

src/Math-AutomaticDifferenciation/PMDualNumber.class.st

@@ -204,11 +204,6 @@ PMDualNumber >> isNaN [
 	^ value isNaN
 ]
 
-{ #category : #testing }
-PMDualNumber >> isNumber [
-^true
-]
-
 { #category : #testing }
 PMDualNumber >> isZero [
 	^value = 0

src/Math-ODE/PMHeunStepper.class.st

@@ -26,10 +26,3 @@ PMHeunStepper >> doStep: aState time: t [
 	^ aState + (self stepSize / 2
 	   * ((system state: aState time: t) + (system state: xi time: ti)))
 ]
-
-{ #category : #stepping }
-PMHeunStepper >> doStep: aState time: t stepSize: timeStep [
-	"This method should take one step from inState at time t of size dt, and modify the state, then answer it. "
-	self stepSize: timeStep.
-	^ self doStep: aState  time:  t
-]

src/Math-ODE/PMImplicitMidpointStepper.class.st

@@ -27,10 +27,3 @@ PMImplicitMidpointStepper >> doStep: aState time: t [
 	xi2 := 1 / 2 * (aState + (system state: xi1 time: ti)).
 	^ aState + (self stepSize * (system state: xi2 time: ti))
 ]
-
-{ #category : #stepping }
-PMImplicitMidpointStepper >> doStep: aState time: t stepSize: timeStep [
-	"This method should take one step from inState at time t of size dt, and modify the state, then answer it. "
-	self stepSize: timeStep.
-	^ self doStep: aState  time:  t
-]