List questions from map-projections

Published on 25 Mar 2026 - 17:17

40

Views

How can I extract the equations from this 3D projection graph?

Published on 25 Aug 2021 - 16:34

335

Views

Is Mercator projection an affine trasformation?

Published on 01 Sep 2021 - 19:13

35

Views

Mapping of a unit circle to a lune of a unit sphere quarter

Published on 02 Sep 2021 - 1:29

46

Views

Basis of the polynomial with degree less or equal 2

Published on 10 Jan 2022 - 23:18

39

Views

Proof of integral substitution rule

Published on 12 Jan 2022 - 15:13

44

Views

If $U \subset Y \subset \mathbb{R}^n$, and $U$ is open relative to $Y$, then is $\Pi_k(U)$ open relative to $\Pi_k(Y)$? ($\Pi_k$ is a projection map)

Published on 01 Feb 2022 - 21:41

128

Views

Is there an easy way to convert a partial arc length or movement along an elliptic curve into an X,Y position?

Published on 05 Feb 2022 - 10:47

90

Views

In Spherical Mercator Tile coordinates, how to go one zoom-level deeper but span the same area?

Published on 16 Feb 2022 - 21:00

95

Views

Projection operator fixed up to a constant

Published on 28 Apr 2022 - 10:35

41

Views

Closure of the inverse image under the projection map

Published on 24 Feb 2026 - 6:49

35

Views

Name of a map coupled with the identity

Published on 22 Dec 2022 - 0:17

170

Views

Defining an injective map from the algebraic numbers to the set of integer coefficient polynomials.

Published on 20 Jan 2023 - 22:49

List Question

Vector Projections

How can I extract the equations from this 3D projection graph?

Is Mercator projection an affine trasformation?

Mapping of a unit circle to a lune of a unit sphere quarter

Basis of the polynomial with degree less or equal 2

Proof of integral substitution rule

If $U \subset Y \subset \mathbb{R}^n$, and $U$ is open relative to $Y$, then is $\Pi_k(U)$ open relative to $\Pi_k(Y)$? ($\Pi_k$ is a projection map)

Is there an easy way to convert a partial arc length or movement along an elliptic curve into an X,Y position?

In Spherical Mercator Tile coordinates, how to go one zoom-level deeper but span the same area?

Projection operator fixed up to a constant

Closure of the inverse image under the projection map

Name of a map coupled with the identity

Defining an injective map from the algebraic numbers to the set of integer coefficient polynomials.

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