# Laplacian of the value function

## Homework Statement

Laplacian of the function V(x,t)=-1/2* x' D x + h' *x + D

## The Attempt at a Solution

is equals D.

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Orodruin
Staff Emeritus
Homework Helper
Gold Member
Your answer is wrong, please explain your reasoning. Note that D is a matrix and the Laplacian of a scalar function should be a scalar.

Edit: Note that I am assuming your x is a vector and x' its transpose. You really have not made this point clear in your post.

Laplacian of the function V(x,t)=-1/2* x' D x + h' *x - Z

x is a vector D is a matrix which depends on time h is a vector which depends on time Z is also a vector depends on time

D is a square matrix..

Ray Vickson
Homework Helper
Dearly Missed

## Homework Statement

Laplacian of the function V(x,t)=-1/2* x' D x + h' *x + D

## The Attempt at a Solution

is equals D.
PF rules require you to show your work. What is preventing you from just going ahead and actually computing the Laplacian?