Question

Another $\varepsilon$-$\delta$ argument for $h(x)=\frac{1}{1+x^2}$

score 67 · Answer 1 · 2026-03-25 08:09:22

67

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Another $\varepsilon$-$\delta$ argument for $h(x)=\frac{1}{1+x^2}$

Published on 25 Mar 2026 - 8:09

score 456 · Answer 2 · 2018-04-14 20:15:55

456

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Doubts: Discontinuity Criterion and motivation behind it

Published on 14 Apr 2018 - 20:15

score 135 · Answer 3 · 2018-04-14 22:45:08

135

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extract x: $((x+y)^n - x^n)^{1/n}$ expressed in the form $ba^{c}$ where all that matters is b contains x

Published on 14 Apr 2018 - 22:45

score 25 · Answer 4 · 2018-04-15 11:52:40

25

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Real Analysis. Continuity

Published on 15 Apr 2018 - 11:52

score 123 · Answer 5 · 2026-03-26 17:31:41

123

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Proving an Inequality in Fourier Transformation

Published on 26 Mar 2026 - 17:31

score 316 · Answer 6 · 2026-03-25 10:31:02

316

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Intuitively (or precisely), which functions can be approximated by straight lines?

Published on 25 Mar 2026 - 10:31

score 567 · Answer 7 · 2018-04-16 03:50:06

567

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Epsilon-Delta Proof of Continuity for $\sin(x^2)$

Published on 16 Apr 2018 - 3:50

score 39 · Answer 8 · 2026-03-27 22:59:33

39

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Real analysis Math

Published on 27 Mar 2026 - 22:59

score 74 · Answer 9 · 2026-03-25 19:10:20

74

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Can we say that $\int_{0}^{1} f (x)\ \mathrm {d}x \geq \frac {1} {2}$?

Published on 25 Mar 2026 - 19:10

score 193 · Answer 10 · 2026-03-25 09:28:34

193

Views

Details in non-Hölder continuity of Brownian Motion

Published on 25 Mar 2026 - 9:28

score 206 · Answer 11 · 2026-03-28 02:09:36

206

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Discontinuous linear operator

Published on 28 Mar 2026 - 2:09

score 17k · Answer 12 · 2018-04-17 11:31:02

17k

Views

If derivative of $f$ is continuous, then $f$ is continuous.

Published on 17 Apr 2018 - 11:31

score 321 · Answer 13 · 2026-03-25 15:43:38

321

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Why does continuity of the composite function $f\circ g$ at $c$ require continuity of the function $g$ at $c$?

Published on 25 Mar 2026 - 15:43

score 78 · Answer 14 · 2018-04-17 14:44:09

78

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Exists a continuous function $f: \mathbb R \to \mathbb R$ with $f(x_n) = y_n, \, \forall n$ and $f(x) = y$

Published on 17 Apr 2018 - 14:44

score 345 · Answer 15 · 2026-03-25 19:05:43

345

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Riemann definition of integrability to show integral exists

Published on 25 Mar 2026 - 19:05

List Question

Another $\varepsilon$-$\delta$ argument for $h(x)=\frac{1}{1+x^2}$

Doubts: Discontinuity Criterion and motivation behind it

extract x: $((x+y)^n - x^n)^{1/n}$ expressed in the form $ba^{c}$ where all that matters is b contains x

Real Analysis. Continuity

Proving an Inequality in Fourier Transformation

Intuitively (or precisely), which functions can be approximated by straight lines?

Epsilon-Delta Proof of Continuity for $\sin(x^2)$

Real analysis Math

Can we say that $\int_{0}^{1} f (x)\ \mathrm {d}x \geq \frac {1} {2}$?

Details in non-Hölder continuity of Brownian Motion

Discontinuous linear operator

If derivative of $f$ is continuous, then $f$ is continuous.

Why does continuity of the composite function $f\circ g$ at $c$ require continuity of the function $g$ at $c$?

Exists a continuous function $f: \mathbb R \to \mathbb R$ with $f(x_n) = y_n, \, \forall n$ and $f(x) = y$

Riemann definition of integrability to show integral exists

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