Skip to content

Fix FirstDerivative callback #1991

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
May 24, 2025
Merged

Fix FirstDerivative callback #1991

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 13 additions & 2 deletions deepxde/callbacks.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -463,13 +463,24 @@ class FirstDerivative(OperatorPredictor):

Args:
x: The input data.
component_x (int): Input component for the derivative (default: 0).
component_y (int): Output component for the derivative (default: 0).
period (int): Interval (number of epochs) between checking values.
filename (string): Output the values to the file `filename`.
The file is kept open to allow instances to be re-used.
If ``None``, output to the screen.
precision (int): The precision of variables to display.
"""

def __init__(self, x, component_x=0, component_y=0):
def __init__(
self, x, component_x=0, component_y=0, period=1, filename=None, precision=2
):
def first_derivative(x, y):
return grad.jacobian(y, x, i=component_y, j=component_x)

super().__init__(x, first_derivative)
super().__init__(
x, first_derivative, period=period, filename=filename, precision=precision
)


class MovieDumper(Callback):
Expand Down