In which direction does the directional derivative for $f ( x , y ) = x ^ { 2 } y$ at $( 1,1 )$ have value 1? Value $- 2$ ? Is there a direction for which the value is 4?

Question

Quizplus · Accepted Answer

The Answer of In which direction does the directional derivative for $f ( x , y ) = x ^ { 2 } y$ at $( 1,1 )$ have value 1? Value $- 2$ ? Is there a direction for which the value is 4?

In Which Direction Does the Directional Derivative For f(x,y)=x2yf ( x , y ) = x ^ { 2 } yf(x,y)=x2y

In Which Direction Does the Directional Derivative For $f ( x , y ) = x ^ { 2 } y$