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New posts in rational-numbers
Proving the rationals are dense in R
real-analysis
rational-numbers
Rational solutions of Pell's equation
number-theory
diophantine-equations
rational-numbers
pell-type-equations
Is it possible to permutate a periodic sequence in such a way that any infinite substring will always be non-periodic?
sequences-and-series
combinatorics
irrational-numbers
rational-numbers
Is $\frac{1}{11}+\frac{1}{111}+\frac{1}{1111}+\cdots$ an irrational number?
sequences-and-series
elementary-number-theory
irrational-numbers
rational-numbers
Why must we distinguish between rational and irrational numbers?
irrational-numbers
rational-numbers
Can every irrational number be written in terms of finitely many rational numbers?
irrational-numbers
rational-numbers
Multiplying and adding fractions
algebra-precalculus
rational-numbers
Is the square root of -1 rational?
terminology
complex-numbers
rational-numbers
Given any two real numbers $x<y$, there is a rational $q$ with $x<q<y$
real-numbers
rational-numbers
Perfect sets and topological vs. limit closure
general-topology
rational-numbers
H0w t0 prove that periodic decimal numbers are rational? $a_1...a_k(b_1b_2..b_l)={m \over n}$
proof-writing
rational-numbers
Solutions to $f'=f$ over the rationals
analysis
ordinary-differential-equations
rational-numbers
Rational number to the power of irrational number = irrational number. True?
irrational-numbers
exponentiation
rational-numbers
If $ f(x \cdot f(y) + f(x)) = y \cdot f(x) + x $, then $f(x)=x$
functional-equations
rational-numbers
Length of period of decimal expansion of a fraction
fractions
rational-numbers
decimal-expansion
Axiomatic characterization of the rational numbers
logic
field-theory
axioms
rational-numbers
Why (directly!) does every number divide 9, 99, 999, ... or 10, 100, 1000, ..., or their product? [duplicate]
elementary-number-theory
divisibility
rational-numbers
How to show that if $x, y, z$ are rational numbers satisfying $(x + y + z)^3 = 9(x^2y + y^2z +z^2x)$, then $x = y = z$ [closed]
algebra-precalculus
rational-numbers
Is sin(x) necessarily irrational where x is rational?
trigonometry
irrational-numbers
pi
rational-numbers
Total distance traveled when visiting all rational numbers
sequences-and-series
rational-numbers
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