Hey mathmari.
Can you get some sample values at different (x,y) points but in terms of a? That is the best you are going to do without actually substituting in a value for a itself.
Hello!!!I hope you can help me at this exercise:
Draw some contour curves in the (x, y)–plane of the function h(x,y)=(a*(x+y))/(x^2+y^2+a^2).
I fixed and the plot can be seen here:(2*(x+y))/(x^2+y^2+4) - Wolfram|Alpha.
But....how is the plot for any ???