Group 1: Tau_w+ [50, 100, 150, 200, 250, 300, 350, 400] vs tau_w-(10,25,50,75,100,150,300,400) (where tau_w-=tau_w1- = tau_w2-)
This is actually 68 different simulations
	APD versus recovery time

Group 2: Tau_fi  [0.05 0.075 0.1 0.15 0.2 0.25 0.3]   vs  tau_si [ 1.5  1.75 2.0 2.25 2.5 2.75 3.0]  that is a matrix of 49 different runs.  
	Fast sodium channel vs calcium channel 

Group 3: Tau_si[ 1.5, 1.75, 2.0, 2.25, 2.5, 2.75, 3.0]  vs tau_so1 [ 5,10,20,50,100, 150] this is 42 simulations
	Calcium channel versus Potassium channel

Group 4: Tau_fi  [0.05 0.075 0.1 0.15 0.2 0.25 0.3]   vs   tau_so1 [ 5,10,20,50,100, 150] this is 42 simulations
	Fast sodium channel versus Potassium channel

Group 5: For the s gate: Tau_s1 [ 1, 3, 5]   vs  Tau_s2 [2, 5, 10,15,20].  With theta_w =  0.13   and  0.23   This is 30 different simulations
	Shape of the notch?