What exactly is "the unit interval with two origins"?
42336
The Line with two origins
89789
Spacelike interval and length contraction
143235
Twin Paradox, calculating spacetime intervals from both perspectives
40365
Confidence interval for the product of two parameters
110693
How to show the maximal interval for $\dot{x}(t)=-cx^2(t)+\frac{x^2(t)}{1+x^2(t)}$ is $[0,\infty)$?
102729
Is there an equidissection of a unit square involving irrational coordinates?
102059
Understanding integrals double meaning
129334
Where does $\in$ come from and where is it defined?
140851
Precalculus unit circle with imaginary axis.
2824
The derivation of the Wald interval
121311
Simple Harmonic Motion - What are the units for $\omega_0$?
157417
Understanding the definition of a multiple (double) root
124100
Write the closed interval $[a,b]$ as the union of semi-intervals.
22436
How is a second measured? And why is it measured that way?
149533
How do the radian have a unit?
9696
The interval [0,1] andd [3,5] are equivalent. Is my proof correct?
119570
Find the time period with the maximum number of overlapping intervals