Symbol

Meaning

C

channel capacity

C_max

maximum channel capacity

C_P

number of characters per word

$\Delta C_{kj}$

capacity difference

G

readability index

G_c

semantic term

G_F

syntactic term

I

total number of interpunctions

I_P

number of words per interpunction (word interval)

I_P∞

horizontal asymptote

m

slope

n_I

number of interpunctions per chapter

n_S

number of sentences per chapter

n_W

number of words per chapter

m_Cmax

slope for maximum capacity C

m_kj

slope

M_F

number of interpunctions per sentence

N_m

regression noise power

N_r

correlation noise power

n_k

noise source

$n_{j,tot}$

total noise source

P_F

number of words per sentence

P_Fo

1/e of exponential maximum value

r

correlation coefficient

$r_{m=1}$

irreducible correlation coefficient

R

total noise-to-signal power ratio

R_m

regression noise-to-signal power ratio

R_r

correlation noise-to-signal power ratio

R_min

minimum noise-to-signal power ratio

$\rho$

signal-to-noise power ratio

S

total number of sentences

$s_x^2$

variance of x

$s_{nk}^2$

noise variance (power)

Y_k

input language

Y_j

output language

W

total number of words