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Chase Ernser

Questions by Chase Ernser

Docker - Ubuntu - bash: ping: command not found?

I've got a Docker container running Ubuntu which I did as follows: docker run -it ubuntu /bin/bash however it doe...

Align two-button layout left and right in Android?

I want to align two buttons with a linear layout, one on the left, and one on the right, like the next and previous ...

Clear Transparent Background for QWidget?

I have a widget as on overlay for another widget. The transparency works fine, as long as I don't clear the backgrou...

How to create wave shape using css?

I am trying to display an li element as a wave. I don't want to use any background images but the border-radius does...

Error: EACCES: permission denied, access '/usr/local/lib/node_modules' react?

What might be causing the error Error: EACCES: permission denied, access '/usr/local/lib/node_modules'? npm ERR! pa...

ImportError: No module named IPython?

When i try to use from IPython.display import clear_output, display_html, then i show the error: (ImportError: No ...

How to plot 3D grid (cube) in Matlab?

Hi I would like to plot transparent cube-shaped grid with lines in it. Something like this: However, I managed onl...

Multiplying by an Integer by a Float/Double in Java?

I'm trying to do something so simple: multiply an integer by a float/double: public class A { public static voi...

Convert =C3=B6 to ö assuming UTF-8?

So I am trying to read an email, it is encoded in quoted printable and thus contains for example: =C3=B6 That sho...

How to configure and send mail with Postfix using a PHPmailer??

I have a PHPmailer class, downloaded from an example. I configured and installed Postfix and mailutils, but I don't ...

How do I check if a method returns true or false in an IF statement in Java??

Let's say I have a boolean method that uses an if statement to check whether the return type should be true or false...

PLS--00103 error in pl/sql?

I was writing a simple program of senior citizen checking. But the error baffled me. The code as follows declare ...

How to clean up R memory (without the need to restart my PC)??

I am running my code in R (under Windows) which involves a lot of in-memory data. I tried to use rm(list=ls()) to cl...