My Math Forum  

Go Back   My Math Forum > High School Math Forum > Elementary Math

Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion


Thanks Tree1Thanks
Reply
 
LinkBack Thread Tools Display Modes
July 23rd, 2015, 09:03 AM   #1
Senior Member
 
Joined: Dec 2012
From: Hong Kong

Posts: 853
Thanks: 311

Math Focus: Stochastic processes, statistical inference, data mining, computational linguistics
How do you write the real number symbol?

I'm genuinely curious about this. How does one write the symbol denoting the set of real numbers on paper? Does one need to write two overlapping Rs? Thanks.
123qwerty is offline  
 
July 23rd, 2015, 09:06 AM   #2
Global Moderator
 
CRGreathouse's Avatar
 
Joined: Nov 2006
From: UTC -5

Posts: 16,046
Thanks: 938

Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms
Generally I write a normal capital R with an extra stroke to the left of the stem.
Thanks from 123qwerty
CRGreathouse is offline  
July 23rd, 2015, 04:15 PM   #3
Global Moderator
 
Joined: May 2007

Posts: 6,730
Thanks: 689

There are no had and fast rules. Use whatever symbol you want, but make sure you define it first.
mathman is offline  
July 23rd, 2015, 04:47 PM   #4
Math Team
 
Joined: Jul 2011
From: Texas

Posts: 2,887
Thanks: 1506

$\displaystyle \mathbb{R}$
skeeter is offline  
July 24th, 2015, 09:04 AM   #5
Senior Member
 
Joined: Dec 2012
From: Hong Kong

Posts: 853
Thanks: 311

Math Focus: Stochastic processes, statistical inference, data mining, computational linguistics
Thanks guys. I'll go by CRGreathouse's method since it's easy to write that.
123qwerty is offline  
July 24th, 2015, 02:38 PM   #6
Senior Member
 
Joined: Jan 2014
From: The backwoods of Northern Ontario

Posts: 390
Thanks: 70

It's even simpler to use a bolded R for the set of real numbers... just as a bolded Q is used for the set of rational numbers.
Timios is offline  
July 24th, 2015, 03:43 PM   #7
Senior Member
 
Monox D. I-Fly's Avatar
 
Joined: Nov 2010
From: Indonesia

Posts: 2,001
Thanks: 132

Math Focus: Trigonometry
Quote:
Originally Posted by Timios View Post
It's even simpler to use a bolded R for the set of real numbers... just as a bolded Q is used for the set of rational numbers.
But when your writing style always looks bolded, it's hard to distinguish them.
Monox D. I-Fly is offline  
July 27th, 2015, 05:47 PM   #8
Newbie
 
Joined: Jul 2015
From: greece

Posts: 2
Thanks: 0

Quote:
Originally Posted by 123qwerty View Post
I'm genuinely curious about this. How does one write the symbol denoting the set of real numbers on paper? Does one need to write two overlapping Rs? Thanks.
The symbol for real numbers is R
KOSTAS NIKOLAKOPOULOS is offline  
July 27th, 2015, 07:21 PM   #9
Senior Member
 
Monox D. I-Fly's Avatar
 
Joined: Nov 2010
From: Indonesia

Posts: 2,001
Thanks: 132

Math Focus: Trigonometry
Quote:
Originally Posted by KOSTAS NIKOLAKOPOULOS View Post
The symbol for real numbers is R
Isn't that the symbol for rational numbers?
Monox D. I-Fly is offline  
July 27th, 2015, 09:01 PM   #10
Math Team
 
Joined: Nov 2014
From: Australia

Posts: 689
Thanks: 244

Real numbers is $\mathbb{R}$.

Rational numbers is $\mathbb{Q}$.
Azzajazz is offline  
Reply

  My Math Forum > High School Math Forum > Elementary Math

Tags
number, real, symbol, write



Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
irrational number multiplied by any real number mick7 Number Theory 13 July 13th, 2015 10:08 PM
real number x for which inequality jemes Algebra 4 November 26th, 2014 02:58 PM
real number sebaflores Real Analysis 1 October 12th, 2013 11:20 AM
Real Number Exponents ChloeG Algebra 3 May 17th, 2011 11:00 PM
Finding real number in complex number TsAmE Complex Analysis 1 October 18th, 2010 04:38 PM





Copyright © 2019 My Math Forum. All rights reserved.