Quick MATLAB help -> Setting a termination point on a plot.

[btbam91]

Quick MATLAB help --> Setting a termination point on a plot.

I have this kinematics problem on dropping a ball from a building a few meters high. When I plot the position vs time graph, it starts at let's say 50 meters high, I get a plot of an upside down parabola, as expected, but my plot continues down below 0. Is there a way to tell MATLAB to stop calculating/plotting values when x=0?

Thanks.

 

[JesseC]

It will plot all the data points you give it... so give it less data points if some are nonsensical or change the axis length to cut them out of view!

 

[viscousflow]

Place an if statement such that if y=0, then x=0.

 

[jhae2.718]

Sometimes I'll iterate through the results and slice the vector where the absolute value of the i-th element subtracted from zero is less than some epsilon. Not particularly elegant, but it works.

 

[DeeNos]

Yes, there is a way to set a termination point on a plot in MATLAB. You can use the "xlim" function to specify the range of values for the x-axis. For example, if you want the plot to stop at x=0, you can use the command "xlim([0, inf])" to set the x-axis limit to start at 0 and extend to infinity. This will stop the plot from continuing below 0. Additionally, you can also use the "ylim" function to specify the range of values for the y-axis, if needed. I hope this helps with your kinematics problem.