What is the newest installment of 'Random Thoughts' on Physics Forums?

[BillTre]

 

[dlgoff]

Dang. Wind chill is -25 degrees F here right now.

 

[WWGD]

I wouldn't call that recursion, but yes it should work.

( This was re Python code that a positive integer n and ouputs the string 123..n )

I ended up using:

n=int(input)
for i in range(1,n+1):
     print(i, end = "")

Code from last line is pretty handy. Prints everything (here in the range (1,n+1)) and adjoins/appends that which is at the 'end' part = (Here the empty string ), therefore output is 1234..n (not sure why we're using n+1 rather than n)

There was another way of adjoining through ("".join(i,j) ), which does output the string 'ij' , but I would have had to iterate with a base case. Will try it some other time.

Though nots ure why I was told to include:

if __name__ == '__main__':

 

[dlgoff]

Dang. Wind chill is -25 degrees F here right now.

The wind is not letting up. Here is what a Google search shows:
Dangerously cold wind chills from 25 below zero to 40
below zero.

 

[WWGD]

The wind is not letting up. Here is what a Google search shows:
Dangerously cold wind chills from 25 below zero to 40
below zero.

Sorry to hear. Are you required to go out? Do you have enough provisions to last you through it?

 

[Ibix]

(not sure why we're using n+1 rather than n)

Because range(a,b) gives a, a+1,..., b-1, consistent with range(b) giving 0, 1,..., b-1.

There was another way of adjoining through ("".join(i,j) ), which does output the string 'ij' , but I would have had to iterate with a base case. Will try it some other time.

This lets you do it as a one-liner, assuming you've read in n already:

print("".join([str(i+1) for i in range(n)]))

(You may be able to omit the square brackets - not 100% sure off the top of my head.)

Though nots ure why I was told to include:

if __name__ == '__main__':

__name__ stores the name of the python module, and if it is __main__ then it's the entry file - i.e., the user ran python thismodule.py, rather than the module being brought in via an import statement. If you put any "script" style code (rather than class/variable/function definitions) in that if statement then you can include the module via import in another program, and all your classes etc are available to that program without whatever script you wrote getting executed. The primary use I've made of this is to write some working demo code inside a library:

class MyClass:
    def whatever(self):
        return "whatever"
if __name__ == "__main__":
    print("Demo of MyClass' whatever() method:")
    c = MyClass()
    print(c.whatever())

Then if a user runs this module they get a little demo, but if they import it they just get the class and no random output from my little demo script. It's a bit pointless if your python file doesn't define anything you could ever possibly reuse, but using it anyway is probably not a bad habit to get into.

 

[dlgoff]

Sorry to hear. Are you required to go out? Do you have enough provisions to last you through it?

I'm retired, so will be staying inside. I will only go out to drive to my mailbox. I've got enough to eat for a while. Thanks.

 

[WWGD]

I'm retired, so will be staying inside. I will only go out to drive to my mailbox. I've got enough to eat for a while. Thanks.

Just in case, the US Soccer team may be flying over , something may happen to the flight. In case you get too hungry. ;).

 

[WWGD]

Still unclear why/how Quic/Http3 with UDP is preferred to Https with TCP/IP . Of the two, only Https with Tcp/Ip has ways of verifying whether packets arrived.

​

​

​

 

[collinsmark]

Still unclear why/how Quic/Http3 with UDP is preferred to Https with TCP/IP . Of the two, only Https with Tcp/Ip has ways of verifying whether packets arrived.

 

[dlgoff]

Dang. Wind chill is -25 degrees F here right now.

It's 17 degrees F and the wind chill is still -25 degrees F and every thing is ice covered. I hate winter.

 

[WWGD]

It's 17 degrees F and the wind chill is still -25 degrees F and every thing is ice covered. I hate winter.

I think of it this way: it's the season to eat rich, heavy foods that would knock you out if you ate them in winter.

 

[Astronuc]

A Tesla owner says his car wouldn't charge in freezing temperatures, leaving him stranded on Christmas Eve​

https://www.yahoo.com/news/tesla-owner-says-car-wouldnt-101617440.html

The 44-year-old radio presenter, from Lynchburg in eastern Virginia, told Insider it was 19 degrees (minus 7 C) when he plugged his Tesla S into a supercharger on Friday as his battery was down to 40%.

I expected that EVs don't perform well in weather below freezing.

 

[dlgoff]

Merry Christmas Physics Forums.

 

[Ibix]

Merry Christmas!

 

[Bystander]

I expected that EVs don't perform well in weather below freezing.

"Ya think?"

 

[Borg]

Merry Christmas all!

 

[dlgoff]

Dang. More cold weather and snow See red arrow for about where I live:

 

[dlgoff]

starting to get a little sleet now.

 

[dlgoff]

starting to get a little sleet now.

Every thing is covered with a layer of ice now.

 

[Tom.G]

...every thing is ice covered. I hate winter.

You would be welcome in my neighborhood, it's known as "Shake-'N'-Bake" land. (AKA Southern California)

Cheers,
Tom

 

[nuuskur]

Some free time. Fallout Tale of Two Wastelands (mod that combines FO3 and New Vegas) here I come. Real world problems - bye bye!

 

[WWGD]

I ran into a former student of mine, from my days as an adjunct . He said he had been trying to reach me for a recommendation. I told him , in a nice way, that I believed my ob ligations expired after I stopped traching. Now Im not so sure.
On a related note, I found out I had missed one day of the week during two of my classes. I thought back then they were MWF classes, but they actually were MTWTh classes.

 

[Astronuc]

In another thread on Pyroclastic Flows (Volcanoes), there is a post about the White Island (Whakaari) eruption of December 2019.

https://www.physicsforums.com/threads/pyroclastic-flows-200-700-c.1048467/post-6835565

There have been numerous videos of the eruption. The following videos provide interviews with some of the 25 survivors, some of whom lost friends and family members; there were 22 fatalities.
https://en.wikipedia.org/wiki/Whakaari_/_White_Island
Whakaari is an active andesite stratovolcano located about 48 km (30 mi) from the east coast of the North Island of New Zealand, in the Bay of Plenty.

 

[WWGD]

Still looking for an example of someone who's hips do lie.

 

[Ibix]

Still looking for an example of someone who's hips do lie.

Mine are lying in bed, along with the rest of me, if that helps.

 

[nuuskur]

The dad jokes are strong with you

 

[berkeman]

I found out I had missed one day of the week during two of my classes. I thought back then they were MWF classes, but they actually were MTWTh classes.

Um...

 

[WWGD]

Um...

Ah, yes, MTF vs MTThF.

 

[Tom.G]

On a related note, I found out I had missed one day of the week during two of my classes. I thought back then they were MWF classes, but they actually were MTWTh classes.

Um.

Ah, yes, MTF vs MTThF.

And I see the reason remains.

 

[WWGD]

And I see the reason remains.

I don't see it. I know it may be unusual , but we did have some MTF classes, rather than MWF , if that's what you mean.

 

[Rive]

if that's what you mean.

IMHO he's QQ about your AA

Ps.: I too wonder what MTF, MWF, MTWTh, MTThF might be...

 

[WWGD]

IMHO he's QQ about your AA

Ps.: I too wonder what MTF, MWF, MTWTh, MTThF might be...

Something about the World Wrestling Federation. Great school! But, no, its about the days of the week ;).

 

[dlgoff]

What's next? Now my water district is having a water outage.

 

[dlgoff]

What's next? Now my water district is having a water outage.

Just to let you guys know, the district just got my water going again.