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need improvement with axis labels and heavy axis lines, poor eyesight here

need improvement with axis labels and heavy axis lines

poor eyes here, thanks

not like fortran, how to extend lines?

t = var('t') y = function('y')(t) ye = desolve(diff(y,t) == 210^(-5)y(1500-y), y, ics=[0,50]) ye = ye3/100 yt = solve(ye.simplify_log(), y) show(expand(yt)) P = plot((1500e^(3/100t)/(e^(3/100*t) + 29)),t,0,250, color='red', thickness = 10 ) L = line([(0,1500), (260,1500)], linestyle=":", color="grey", thickness = 10) show(P+L, figsize=5)

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need improvement with axis labels and heavy axis lines, poor eyesight here

need improvement with axis labels and heavy axis lines

poor eyes here, thanks

not like fortran, how to extend lines?

t = var('t')
y = function('y')(t)
ye = desolve(diff(y,t) == 210^(-5)y(1500-y), 2*10^(-5)*y*(1500-y), y, ics=[0,50])
ye = ye3/100
ye*3/100
yt = solve(ye.simplify_log(), y)
show(expand(yt))
P = plot((1500e^(3/100t)/(e^(3/100*t) plot((1500*e^(3/100*t)/(e^(3/100*t) + 29)),t,0,250, color='red', thickness = 10 )
L = line([(0,1500), (260,1500)], linestyle=":", color="grey", thickness = 10)
show(P+L, figsize=5)

figsize=5)