How can i write a system between 2 derivates with the ti-89?
for example if f(x,y)=a is x^2+3 =y
then the solution is 2x=c => x=c/2
I wasn't able to find anything... i've tried to do something like
solve(d(x^2+3=y,x)|(d(y,x)=1),x) -->wrong value
d(x^2+3=y,x)|(d(y,x)=1)) ------->2x=0 wrong
Thanks in advance