User contributions for Hellingspaul

14 April 2021

• 18:1818:18, 14 April 2021 diff hist +97 File:Bicilnder generalview.jpg ‎Added [en] caption: 3D view of a bicilinder with radius 1.
• 18:1818:18, 14 April 2021 diff hist +229 File:Bicilnder generalview.jpg ‎Added [nl] caption: 3D zicht van een bicilinder met straal 1.
• 18:1818:18, 14 April 2021 diff hist +283 File:Bicilinder yellow.jpg ‎Added [nl] caption: Deel van het oppervlak van een bicilinder als hulp bij het berekenen van inhoud en oppervlakte.
• 18:1818:18, 14 April 2021 diff hist +377 N File:Bicilinder yellow.jpg Uploaded own work with UploadWizard
• 18:1818:18, 14 April 2021 diff hist +281 N File:Bicilnder generalview.jpg Uploaded own work with UploadWizard
• 18:0418:04, 14 April 2021 diff hist +273 File:Tricilinder cap.jpg ‎Added [nl] caption: Bovenste deel van een tricilinder, bedoeld als uitleg bij berekeningen in het artikel
• 18:0418:04, 14 April 2021 diff hist +384 N File:Tricilinder cap.jpg Uploaded own work with UploadWizard
• 18:0418:04, 14 April 2021 diff hist +83 File:Tricilinder generalview.jpg ‎Added [en] caption: 3D view of a tricylinder
• 18:0418:04, 14 April 2021 diff hist +217 File:Tricilinder generalview.jpg ‎Added [nl] caption: 3D zicht van een tricilinder.
• 18:0418:04, 14 April 2021 diff hist +437 N File:Tricilinder generalview.jpg Uploaded own work with UploadWizard

11 April 2021

• 17:1217:12, 11 April 2021 diff hist +136 File:Supertorus16.jpg ‎Added [en] caption: 4X4 array of 16 supertoroids to illustrate the effects of de power parameters
• 17:1217:12, 11 April 2021 diff hist +270 File:Supertorus16.jpg ‎Added [nl] caption: 4x4 rooster met 16 supertorussen die de effecten van de machtsparameters weergeven
• 17:1217:12, 11 April 2021 diff hist +506 N File:Supertorus16.jpg Uploaded own work with UploadWizard

9 April 2021

• 19:2219:22, 9 April 2021 diff hist +140 File:Superkwadrieken8.jpg ‎Added [en] caption: Various superquadratics to show the effects of the powers in the general equation
• 19:2219:22, 9 April 2021 diff hist +279 File:Superkwadrieken8.jpg ‎Added [nl] caption: Diverse gevallen van superkwadrieken die de invloed van de machten in de vergelijking tonen
• 19:2219:22, 9 April 2021 diff hist +454 N File:Superkwadrieken8.jpg Uploaded own work with UploadWizard

5 April 2021

• 11:2911:29, 5 April 2021 diff hist +22 File:Superegg collection.jpg No edit summary
• 11:0211:02, 5 April 2021 diff hist +109 File:Superegg collection.jpg ‎Added [en] caption: Five supereggs for different parameter values of n
• 11:0211:02, 5 April 2021 diff hist +246 File:Superegg collection.jpg ‎Added [nl] caption: Vijf supereieren voor verschillende parameterwaarden van n
• 11:0211:02, 5 April 2021 diff hist +333 N File:Superegg collection.jpg Uploaded own work with UploadWizard

25 March 2021

• 18:0518:05, 25 March 2021 diff hist +240 File:Pseudosfeer.jpg ‎Added [nl] caption: Afbeelding van het centraal deel van een pseudosfeer
• 18:0518:05, 25 March 2021 diff hist +373 N File:Pseudosfeer.jpg Uploaded own work with UploadWizard

8 March 2021

• 20:1520:15, 8 March 2021 diff hist +255 File:Alternerend harmonische partieelsommen.jpg ‎Added [nl] caption: De eerste acht partieelsommen van de alternerende harmonische reeks
• 20:1520:15, 8 March 2021 diff hist +469 N File:Alternerend harmonische partieelsommen.jpg Uploaded own work with UploadWizard

9 February 2021

• 19:0919:09, 9 February 2021 diff hist +264 File:De integraaltest voor de convergentie van reeksen.jpg ‎Added [nl] caption: Illustratie voor het bewijs van de integraaltest voor convergentie van reeksen
• 19:0919:09, 9 February 2021 diff hist +441 N File:De integraaltest voor de convergentie van reeksen.jpg Uploaded own work with UploadWizard

16 January 2012

• 18:1218:12, 16 January 2012 diff hist 0 File:Spherical harmonics hydrogen 311.jpg uploaded a new version of File:Spherical harmonics hydrogen 311.jpg: {{Information |Description ={{en|1=The wave function of a hydrogen electron with quantum numbers n=3, l=1 andm=1}} |Source ={{own}} |Author =[[User:Hellingspaul|Hellin
• 18:1118:11, 16 January 2012 diff hist +331 N File:Spherical harmonics hydrogen 311.jpg {{Information |Description ={{en|1=The wave function of a hydrogen electron with quantum numbers n=3, l=1 andm=1}} |Source ={{own}} |Author =Hellingspaul |Date = |Permission = |other_versions = }}
• 15:2515:25, 16 January 2012 diff hist +386 N File:Spherical harmonics on unit sphere.jpg {{Information |Description ={{en|1=The spherical harmonics (l,m) = (3,0) to (3,3) used as perturbationson a unity sphere.}} |Source ={{own}} |Author =Hellingspaul |Date =2012-01-16 |Permission = |othe
• 15:2115:21, 16 January 2012 diff hist +367 N File:Spherical harmonics lobes.jpg {{Information |Description ={{en|1=Visualisation of the real part of the first few spherical harmonics}} |Source ={{own}} |Author =Hellingspaul |Date =2012-01-16 |Permission = |other_versions = }} [[

31 December 2011

• 13:5513:55, 31 December 2011 diff hist +299 N File:Viviani kromme.jpg {{Information |Description ={{en|1=Viviani curve}} |Source ={{own}} |Author =Hellingspaul |Date =2011-12-31 |Permission = |other_versions = }} Category:Geometry

28 December 2011

• 16:4516:45, 28 December 2011 diff hist +323 N File:Buffon naald 2.jpg {{Information |Description ={{en|1=Principle of the needles of Buffon}} |Source ={{own}} |Author =Hellingspaul |Date =2011-12-28 |Permission = |other_versions = }} Category:Probability

27 December 2011

• 19:1119:11, 27 December 2011 diff hist +332 N File:Buffon naald.jpg {{Information |Description ={{en|1=How to calculate the probability of Buffon's needle. }} |Source ={{own}} |Author =Hellingspaul |Date = |Permission = |other_versions = }} Category:Probability

26 December 2011

• 17:1717:17, 26 December 2011 diff hist +323 N File:Dandelin spheres.jpg {{Information |Description ={{en|1=The two Dandelin spheres in case of an ellipse.}} |Source ={{own}} |Author =Hellingspaul |Date = |Permission = |other_versions = }} Category:Geometry

20 December 2011

• 18:0018:00, 20 December 2011 diff hist +369 N File:Clairaut example.jpg {{Information |Description ={{en|1=Example of the solution of the Clairaut equation y = xy' + (y'-y'.y')}} |Source ={{own}} |Author =Hellingspaul |Date =2011-12-20 |Permission = |other_versions = }}

19 December 2011

• 13:4813:48, 19 December 2011 diff hist +382 N File:Isogonal trajectories.jpg {{Information |Description ={{en|1=example of isgonal trajectories (45°), one of the families being circles, the other spirals}} |Source ={{own}} |Author =Hellingspaul |Date = |Permission = |other_ve

15 December 2011

• 20:2420:24, 15 December 2011 diff hist +329 N File:Orthogonal trajectories.jpg {{Information |Description ={{en|1=Example of orthogonal families}} |Source ={{own}} |Author =Hellingspaul |Date =2011-12-16 |Permission = |other_versions = }} Category:Mathematical analysis

13 December 2011

• 17:2417:24, 13 December 2011 diff hist +795 N File:Galaxy map 1958 MNRAS.jpg {{Information |Description ={{en|1=Historical radiomap of the galaxy based on the 21cm emission line by Oort et.al. (1958)}} |Source =Monthly Notices of the Royal Astronomicl Society, 1958 Vol 18, p3797 |Author =Oort, Westerhout, Kerr |
• 16:5916:59, 13 December 2011 diff hist +413 N File:Origin 21cm line.jpg {{Information |Description ={{en|1=The origin of the 21cm radio emission line: the transition from parallel spin to opposite spin in a neutral hydrogen atom. }} |Source ={{own}} |Author =Hellingspaul |Date

11 December 2011

• 20:1320:13, 11 December 2011 diff hist +352 N File:Duivelscurve.jpg {{Information |Description ={{en|1=Devil' curve for a = 1, b = 0.98, 0.90 0.70 and 0.50}} |Source ={{own}} |Author =Hellingspaul |Date =2011-12-10 |Permission = |other_versions = }} [[Category:Mathem

9 December 2011

• 19:2819:28, 9 December 2011 diff hist +311 N File:Hippopede shapes.jpg {{Information |Description ={{en|1=Shapes of a hippopede}} |Source ={{own}} |Author =Hellingspaul |Date = |Permission = |other_versions = }} Category:Mathematical functions
• 19:2719:27, 9 December 2011 diff hist +369 N File:Hippopede torus plane.jpg {{Information |Description ={{en|1=Construction of a hippopede as the intersection of a torus and an tangent plane}} |Source ={{own}} |Author =Hellingspaul |Date = |Permission = |other_versions = }}

8 December 2011

• 19:1119:11, 8 December 2011 diff hist +331 N File:Plateau curves positive.jpg {{Information |Description ={{en|1=Four Plateau curves for ratio 1/5 tot 4/5}} |Source ={{own}} |Author =Hellingspaul |Date = |Permission = |other_versions = }} Category:Mathematical functions

7 December 2011

• 09:4609:46, 7 December 2011 diff hist +363 N File:ML relation.jpg {{Information |Description ={{en|1=Plot of the mass-luminosity relation of main sequence stars up tot 20 solar masses}} |Source ={{own}} |Author =Hellingspaul |Date = |Permission = |other_versions =

3 December 2011

• 16:2816:28, 3 December 2011 diff hist +331 N File:Conchoide general.jpg {{Information |Description ={{en|1=Example of generalized conchoid}} |Source ={{own}} |Author =Hellingspaul |Date =2011-12-03 |Permission = |other_versions = }} Category:Mathematical functions
• 16:2716:27, 3 December 2011 diff hist +321 N File:Conchoide nicomedes.jpg {{Information |Description ={{en|1=Conchoid of Nicomedes}} |Source ={{own}} |Author =Hellingspaul |Date =2011-12-03 |Permission = |other_versions = }} Category:Mathematical functions
• 16:2716:27, 3 December 2011 diff hist +333 N File:Conchoide definitie.jpg {{Information |Description ={{en|1=Construction method of a conchoid}} |Source ={{own}} |Author =Hellingspaul |Date =2011-12-03 |Permission = |other_versions = }} Category:Mathematical functions

28 November 2011

• 18:0018:00, 28 November 2011 diff hist +336 N File:Log spiral and evolute.jpg {{Information |Description ={{en|1=A logarithmic spiral and its evolute}} |Source ={{own}} |Author =Hellingspaul |Date =2011-11-28 |Permission = |other_versions = }} [[Category:Mathematical functions

19 November 2011

• 20:4620:46, 19 November 2011 diff hist +403 N File:Logarit spiral.jpg {{Information |Description ={{en|1=The logaritmic spiral. The pitch angle, the angle between the tangent line and the line orthogonal to the radius is constant.}} |Source ={{own}} |Author =Hellingspaul |Date

4 November 2011

• 14:3214:32, 4 November 2011 diff hist +314 N File:Lotka Volterra fase.jpg {{Information |Description ={{en|1=Phase diagram of a Lotka-Volterra model.}} |Source ={{own}} |Author =Hellingspaul |Date =2011-11-03 |Permission = |other_versions = }} [[Category:Biological systems