ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Mon, 26 Jul 2021 18:41:47 +0200Implicit derivative at a particular pointhttps://ask.sagemath.org/question/57986/implicit-derivative-at-a-particular-point/ For the function f(x,y) = x^3 + y^3 - 6*x*y, what will be input command in sage math for calculation of dy/dx at (1,2).Tue, 13 Jul 2021 07:34:53 +0200https://ask.sagemath.org/question/57986/implicit-derivative-at-a-particular-point/Comment by nbruin for <p>For the function f(x,y) = x^3 + y^3 - 6<em>x</em>y, what will be input command in sage math for calculation of dy/dx at (1,2).</p>
https://ask.sagemath.org/question/57986/implicit-derivative-at-a-particular-point/?comment=58121#post-id-58121Have you tried substituting the desired values for x,y into your general expression for the derivative?Mon, 26 Jul 2021 18:41:47 +0200https://ask.sagemath.org/question/57986/implicit-derivative-at-a-particular-point/?comment=58121#post-id-58121Comment by RGG for <p>For the function f(x,y) = x^3 + y^3 - 6<em>x</em>y, what will be input command in sage math for calculation of dy/dx at (1,2).</p>
https://ask.sagemath.org/question/57986/implicit-derivative-at-a-particular-point/?comment=58002#post-id-58002We can find implicit derivative as follows
x = var('x')
y = var('y')
f(x,y) = x^3 + y^3 - 6*x*y
y=function('y')(x)
temp=diff(f(x,y))
solve(temp,diff(y))
But my question is how we can find the value of implicit derivative at point (1,2)Wed, 14 Jul 2021 07:31:29 +0200https://ask.sagemath.org/question/57986/implicit-derivative-at-a-particular-point/?comment=58002#post-id-58002Comment by Emmanuel Charpentier for <p>For the function f(x,y) = x^3 + y^3 - 6<em>x</em>y, what will be input command in sage math for calculation of dy/dx at (1,2).</p>
https://ask.sagemath.org/question/57986/implicit-derivative-at-a-particular-point/?comment=57987#post-id-579871. Homework ?
2. What do you mean ?Tue, 13 Jul 2021 09:52:19 +0200https://ask.sagemath.org/question/57986/implicit-derivative-at-a-particular-point/?comment=57987#post-id-57987