S. No.

Symbol

Meaning

1

$C,C_1,C_2$

fiber capacitance per unit length

2

$G_{ext}\mathrm{,}{G}_i^{ax}\mathrm{,}{G}_i^{my}$

{extracellular, axoplasmic, myelin} conductance (of the i-th axon)

3

$\alpha ,\beta ,{\alpha }_{\mathrm{<mo>\; \{\; </mo>1,2\; <mo>\; \}\; </mo>}}\mathrm{,}{\beta }_{\mathrm{<mo>\; \{\; </mo>1,2\; <mo>\; \}\; </mo>}}$

constants related to geometry, intra- and extra-cellular resistivity, specified in Equations (2) and (3)

4

$g,g_{\mathrm{<mo>\; \{\; </mo>1,2\; <mo>\; \}\; </mo>}}$

constants related to conductance of myelin

5

$V_{\mathrm{<mo>\; \{\; </mo>1,2\; <mo>\; \}\; </mo>}}$

transmembrane potential

6

$W_{ip}$

inter-axonal distance matrix

7

$K_p$

axon number-parametrized geometric constant defined in [13] as $\frac{G_p^{ax}\cos {\theta }_p}{G_{ext}+{\displaystyle {\sum }_p}{G}_p^{ax}\cos {\theta }_p}$

8

$I_i^{inj}$

current injected into the i-th axon

9

${\tau }_{\mathrm{<mo>\; \{\; </mo>1,2\; <mo>\; \}\; </mo>}}$

time delay between stimulus onset and the action potential initiation time