plot a function extend interval

hi i want to plot one function. during the plot i want to extend some part arbitrary like picture . is there any way to do this?look at interval. it doesnt have equal parts.

Answer 1

[Walter Roberson]

If you have older MATLAB, set the axis YTick property to the values you want shown.

With sufficiently new MATLAB, there is a yticks() helper function.

[hamidreza hamidi]

thanks for your answer but i plot my the chart with yticks but it didnt work correctlly . i share my resault .. i wished to have same picture.. book chart and what i simulated. the formula is correct the only problem is about plot look at pictures..u will see my chart below.

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[hamidreza hamidi]

and this is book chart

[Walter Roberson]

It appears they might have used semilogy()

[hamidreza hamidi]

really tnaks ..