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Rational-numbers
New post in Rational-numbers
what's the difference between a rational number and an irrational number?
August 1st, 2022
number-systems
prime-numbers
irrational-numbers
rational-numbers
Does there exist non trivial group homomorphism from $S_3$ to ( $\mathbb Q $,+)
August 1st, 2022
cyclic-groups
group-homomorphism
rational-numbers
group-theory
abstract-algebra
Proof: $\mathbb Q \cap [0,1]$ is not compact (with the definition)
August 1st, 2022
general-topology
rational-numbers
compactness
Why must the decimal representation of a rational number in any base always either terminate or repeat?
July 20th, 2020
decimal-expansion
rational-numbers
Notation for specifying the fractional part of a number
August 4th, 2020
fractions
notation
rational-numbers
Rational values of trigonometric functions
August 1st, 2022
trigonometry
rational-numbers
Definition: rational prime, rational integer
February 23rd, 2020
rational-numbers
number-theory
definition
number between 17 and 18, and has a rational square root
April 29th, 2020
rational-numbers
radicals
arithmetic
Probability of a number being rational
August 1st, 2022
rational-numbers
elementary-set-theory
integration
probability
Question on compact metric space.
August 7th, 2020
general-topology
rational-numbers
metric-spaces
What exactly are those "two irrational numbers" $x$ and $y$ such that $x^y$ is rational?
April 30th, 2020
exponentiation
irrational-numbers
rational-numbers
constructive-mathematics
Approximation of rational numbers
November 30th, 2020
rational-numbers
elementary-number-theory
Is the fact that there are more irrational numbers than rational numbers useful?
July 8th, 2020
elementary-set-theory
rational-numbers
irrational-numbers
Proving that the Calkin-Wilf tree enumerates the rationals.
August 1st, 2022
sequences-and-series
rational-numbers
elementary-number-theory
Is there a sequence that contains every rational number once, but with the "simplest" fractions first?
June 14th, 2020
sequences-and-series
rational-numbers
Example Of a Proper noncyclic Subgroup of rationals
September 9th, 2020
group-theory
abstract-algebra
rational-numbers
examples-counterexamples
Is there any basis transformation under which all irrational numbers are rationals and vice-versa?
August 1st, 2022
number-theory
irrational-numbers
rational-numbers
number-systems
Can set of integers form a vector space over field of rationals?
August 1st, 2022
vector-spaces
rational-numbers
linear-algebra
Prove that $x^3 + x^2 = 1$ has no rational solutions?
August 1st, 2022
proof-writing
proof-verification
rational-numbers
polynomials
What's an example of a number that is neither rational nor irrational?
January 14th, 2020
logic
rational-numbers
intuitionistic-logic
irrational-numbers
model-theory
Find the maximum number of rational points on the circle with center $(0,\sqrt3)$
August 1st, 2022
rational-numbers
circles
Rational solutions of Pell's equation
August 1st, 2022
rational-numbers
pell-type-equations
diophantine-equations
number-theory
Is there a bijection between $\mathbb{Q}$ and $\mathbb{Q}_{>0}$?
September 2nd, 2020
functions
rational-numbers
real-analysis
elementary-set-theory
How to obtain all the rational numbers without repetitions?
August 1st, 2022
rational-numbers
elementary-number-theory
How to explain irrational numbers to laymen?
August 1st, 2022
irrational-numbers
rational-numbers
definition
Definition(s) of rational numbers
April 5th, 2020
rational-numbers
arithmetic
Please help me check my proof that the transcendental numbers are dense in $\mathbb{R}$
August 1st, 2022
abstract-algebra
rational-numbers
proof-verification
transcendental-numbers
Prove that the square root of any irrational number is irrational.
July 22nd, 2020
rational-numbers
Faster arithmetic with finite continued fractions
August 1st, 2022
algorithms
rational-numbers
continued-fractions
fractions
Predicting the number of decimal digits needed to express a rational number
August 1st, 2022
rational-numbers
number-theory
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