How to slash the number zero

I want to know how to get a slashed zero by using the iMac Standard wired keyboard.

I have found out how to get a slashed capital letter O which looks like this: Ø
This is done by pressing option key plus Shift plus letter o

But I want to overlay the following two characters: 0 and /
Is there a combination of keys that will give me a slash through the number 0 ?

Thanks,

iMac 20 inch, Mac OS X (10.6.5), Standard full-size wired keyboard

Posted on Nov 27, 2010 10:20 AM

31 replies

Tom Gewecke

Level 10

122,124 points

Nov 27, 2010 3:38 PM in response to Merged Content 1

The letter O is a complete circle whereas the 0 is kind of oblong.

I think the reason you find slashed zeros in monospace fonts like Monaco is that they use the same shape for zero and letter O, so otherwise you could not tell them apart.

Nov 27, 2010 4:14 PM in response to Tom Gewecke

Yes, that's true.

In ham radio, we actually type different characters for O and for 0̷.
The problem in ham radio is that people write the letters and numbers usually in a hurry and they don't take time to make one a circle and the other one oblong.
So we put a slash through the one which is to be interpreted as the number zero.

WZZZ

Level 6

13,238 points

Nov 27, 2010 5:48 PM in response to Merged Content 1

My call is N0̷YD.

That looks strange. What happened to the prefix W0̷/K0̷? I used to love code. Could copy at 40-45 wpm. Would hear whole words, not individual letters. Used to hang out on 15, 20 meters. SSB was just arriving when I gave it up. Heathkit DX-100. Does that mean anything to you?

I gave it up when I realized I was having more interesting conversations with someone who lived a quarter mile away than on the other side of the world. So why not just meet or talk on the phone? Talk was pretty much restricted to certain topics, like the weather or equipment. (I appreciated it to a certain extent, but wasn't that much into the technical side of things.) How is that now?

Nov 27, 2010 6:00 PM in response to WZZZ

My first call at age 14 was a WN9, then 3 months later W9, then a W0̷
When I got my Extra class license, I selected a one-by-two call N0̷YD and use the mnemonics "Yankee Doodle". It's easy for people to remember.

I used code a lot during those early years but never got much above 15 wpm.
I had an SX-71 Hallicrafters rcvr and a home-brew xmtr.
Conversations by code for me were short and not of a lot of interest.
Then when I got fone my conversations were longer and more interesting.
My interest in traveling and in different cultures all came from ham radio as well as my career as an Electrical Engineer.

Ham radio has had a big influence on my life.

Tom Gewecke

Level 10

122,124 points

Nov 27, 2010 7:29 PM in response to Merged Content 1

I was a K9 Tech back in the 50's, but dropped out until the 90's when I finally passed the code test and got hold of an old Collins rig of the type I could never afford back then. Now I mainly operate SSB and PSK31 (using my Mac) on 20 and 80.

WZZZ

Level 6

13,238 points

Nov 27, 2010 8:59 PM in response to Tom Gewecke

I was a K9 Tech back in the 50's, but dropped out until the 90's

Interesting. That was a long hiatus. Is code still a requirement for the General License (if that category still exists in that name)? Can't see the point of it now -- or even in the 90s -- except as some form of ancient tribal initiation ritual.

Hallicrafters SX-71 and Collins: that brings me back.

Message was edited by: WZZZ

Nov 28, 2010 4:33 AM in response to WZZZ

Today there is no code requirement for any ham radio licenses.

I seldom use code anymore, but do try to practice it now and then so I don't lose it.
just like with a foreign language (which I consider it to be), you need to use it or lose it.

Tom

Tom Gewecke

Level 10

122,124 points

Nov 28, 2010 5:34 AM in response to WZZZ

Is code still a requirement for the General License (if that category still exists in that name)? Can't see the point of it now -- or even in the 90s -- except as some form of ancient tribal initiation ritual.

I had to do 13wpm in the 90's for the license, but the requirement has been eliminated since then, and I was never any good at it. I know quite a few hams who still swear by code as the best mode, especially when conditions are poor, as they have been for a number of years during the sunspot minimum. PSK31/RTTY are a partial substitute.

K.S.

Level 4

3,700 points

Nov 27, 2010 11:05 AM in response to Merged Content 1

The Monaco font has a slashed zero, but that may be a hassle.

Nov 27, 2010 11:15 AM in response to K.S.

Thanks,
I'll give it a try.

What is the procedure to get to the Monaco font.
I'm not familiar with it.

Thanks

Nov 27, 2010 12:17 PM in response to Merged Content 1

ØØ Helvetica and Arial have the character also. use the option,shift and the O letter
Ø

Tom Gewecke

Level 10

122,124 points

Nov 27, 2010 1:16 PM in response to WZZZ

∅∅∅

That's not really a slashed zero either, but the specialized mathematical symbol for "empty set".

WZZZ

Level 6

13,238 points

Nov 27, 2010 2:28 PM in response to Merged Content 1

And I now know the difference between the Danish O with a stroke through it, the empty set symbol (which, to my undiscerning eye, would have been entirely satisfying) and the real 0̷. 🙂

Tom Gewecke

Level 10

122,124 points

Nov 27, 2010 4:27 PM in response to WZZZ

there must be spaces between the replaced figures

On my machine, replacement seems to work by just typing the shortcut and then a space.

Tom Gewecke

Level 10

122,124 points

Nov 27, 2010 4:29 PM in response to Merged Content 1

In ham radio

What bands and modes do you use? We could perhaps have a qso.

de W7THG

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How to slash the number zero