how do you plot level curves without the use of a computer/calculator e.g. in an exam

f(x,y)=x^2-y^2?

Thanks for any help

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- Nov 25th 2010, 11:39 AMhmmmmlevel curves
how do you plot level curves without the use of a computer/calculator e.g. in an exam

f(x,y)=x^2-y^2?

Thanks for any help - Nov 25th 2010, 11:54 AMpickslides
Check this out

plot f(x,y)=x^2-y^2 - Wolfram|Alpha - Nov 25th 2010, 12:11 PMhmmmm
thanks for the reply!, but i was meaning more in an exam without using wolfram/maple.....

I mean how am I supposed to know that is what the level curves of the function look like?

Do you just learn this by becoming familiar with different types of functions?

I am revising for my several varible calculus exam so that is what my questions is in reference to;

Thanks for any help - Nov 25th 2010, 12:34 PMpickslides