MATLAB: How to use axis

axis

hello, i want to know how to use "axis" to choose the points where i want to have my curve
i have this function whose plotted at points -200 to 200 when i tried
axis([-0.3 0.3 -40 40]) it shows
Subscript indices must either be real positive integers or logical.
so what should i do to get my function at the interval [-0.3 0.3 -40 40]?

Best Answer

"when i tried axis([-0.3 0.3 -40 40]) it shows Subscript indices must either be real positive integers or logical"
That error messages means you're trying to index a variable. The most common cause of this error is that you have a variable called axis which shadows the axis function. The solution is to rename that variable to something that is not a function name.
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