# grow
set logscale y
set title "grow"
set terminal png small color
set output 'grow.png'
f(x) = exp(a*x + b)
fit f(x) 'grow' using :1 via 'variable.init'
set label 'a = %3.5g',a at 15, 30000000
set label 'b = %3.5g',b at 15, 40000000
plot 'grow', exp(a*x + b) with linesp