András Retzler ha7ilm

Scalar value for argument 'color' is not numeric

I got this with OpenCV 4.2.0 from cv2.rectangle, where start_point was a list, end_point was a tuple:

cv2.rectangle(rect_mask, start_point_2, end_point, 1, -1)

To fix:

cv2.rectangle(rect_mask, tuple(start_point_2), end_point, 1, -1)

Install MATLAB through `ssh`

For: Ubuntu 20.04.6 LTS + MATLAB R2024a

ssh -X you@yourserver

#If doesn't exist:
touch ~/.Xauthority
sudo -s

% Set figure size and save
set(gcf, 'Position', [1 1 900 250]);
fig = gcf;
fig.PaperUnits = 'points';
fig.PaperPosition = [0 0 fig.Position(3) fig.Position(4)];
fig.PaperSize = [fig.Position(3) fig.Position(4)];
fig.PaperPositionMode = 'auto';
fig_pos = fig.PaperPosition;
fig.PaperSize = [fig_pos(3) fig_pos(4)];

Set custom DPI for Mathpix, Nextcloud, etc. on Windows (any Qt app).

Target:

C:\Windows\System32\cmd.exe /c "SET QT_SCALE_FACTOR=1.3 && SET QT_AUTO_SCREEN_SCALE_FACTOR=0 && start mathpix-snipping-tool.exe"

VS Code Synctex command for SummatraPDF

"C:\Users\YourUsername\AppData\Local\Programs\Microsoft VS Code\Code.exe" -g "%f:%l"

wcd -- cd to a Windows-style path in WSL

What does it do?

user@windows / $ wcd 'C:\Test'
user@windows /mnt/c/Test $

You have to use '' around the path.

Command to open vim from Total Commander as external viewer/editor (Alt+F3) through WSL

wt -p "Ubuntu" wsl zsh -c "vim $(wslpath '%1')"

You shall put it to TC settings, where I have the Notepad++ now:

F_signal = torch.fft.rfft(signal])
w = ((((torch.arange(0,301))/600)*(2*torch.pi))) #signal is 600 samples long
d_signal = torch.fft.irfft(w*torch.tensor(complex(0,1))*F_signal)*(1/dt)

	Copyright 2023 Andras Retzler

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	The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OT

	#We only need to normalize the inputs of a neural network, not necessarily the outputs.
	#However, the choice of the activation function is important, e.g. it doesn't work with `jnp.tanh`.

	import jax.numpy as jnp
	from jax import grad, jit, vmap
	import jax
	from jax import random
	from flax import linen as nn
	from flax.training import train_state
	from optax import adam