help with matlab!!!!!!?

As pronounced above, that's a programming-like environoment which may make an excellent style of calculations. Matlab is often used for controllers, documents aquisition, and that i can only anticipate plenty greater. It pertains to electronics with the aid of those applications. as an occasion a controller can administration digital areas of, say an plane for automobile pilot. a gadget like matlab could want for use to administration the digital areas that administration the plane, and additionally handle the calculations for some embedded fashions of the plane physics, so as that the controller can understand the thank you to regulate the plane with out crashing. comparable examples may be in robotics, automobiles, and in reality something that makes use of sensors that have comments from this sensor.

t=[-9:0.5:9]

y=-sign(t).*t.^2+5

should work but i can't test it.