How to compute the partial derivative

Compute the partial derivative of the following loss function with respect to θj:

J(θ0, θ1, θ2) = -1/m sum_{i = 1}^m [y(i) * log(hθ(x(i))) + (1 - y(i)) log(1 - hθ(x(i)))],

where hθ(x) = 1/(1 + exp(-(θ0 + θ1 x1 + θ2 x2)).

And I write the following ..

sysm x1 x2 theta0 theta1 theta2 y

h(theta0, theta1, theta2) = 1/(1+exp(-(theta0 + theta1*x1 + theta2*x2)));

I dont know how to differentiate the function using : diff (function, var)..

[KALYAN ACHARJYA]

Apart from deletion of the previous question, you can edit the question to update it, so that conv are remains.

[Kumar Thapa]

Thank you. I am just a very new here so..

[KALYAN ACHARJYA]

Welcome Thapa Ji!