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Result 41 to 60 of 328 total

From the $\frac {1}{7}$ ellipse to butterfly wings and rosetas in plane and space. (Od sedminové elipsy k motýlím køídlům a rosetám v rovině a prostoru.) (Czech)
Mat. Fyz. Inform. 21, No. 1, 1-16 (2011).
Classification: G70
41
Discovering ellipses by manipulation with circles. (Objavovanie elipsy manipuláciou s kružnicami.) (Slovak. English summary)
Šedivý, Ondrej (ed.) et al., Zborník vedeckých príspevkov z IX. nitrianskej matematickej konferencie. Nitra: Constantine The Philosopher University in Nitra, Faculty of Natural Sciences (ISBN 978-80-8094-958-7). Prírodovedec 476, 41-46 (2011).
Classification: G44 G74 D54 Reviewer: Ondrej Šedivý (Nitra)
42
Does the camera map parabolas onto parabolas? (Bildet der Fotoapparat Parabeln auf Parabeln ab?) (German)
Mathematikunterricht 57, No. 4, 56-61 (2011).
Classification: M90 G70 G90
43
From the dance of the foci to a strophoid. (English)
Coll. Math. J. 42, No. 4, 289-298 (2011).
Classification: G75
44
Ideas for proofs in geometry. (Beweisideen in der Geometrie.) (German)
Mathematikinformation, No. 55, 24-41 (2011).
45
A characterization of conic sections. (English)
Honam Math. J. 33, No. 3, 335-340 (2011).
Classification: G75 Reviewer: Joseph O’Rourke (Northampton)
46
Isoptics of conic sections. (Kúpszeletek izoptikusai.) (Hungarian)
Polygon 19, No. 2, 27-47 (2011).
Classification: G74
47
A retelling of Newton’s work on Kepler’s laws. (English)
Expo. Math. 29, No. 3, 253-282 (2011).
Classification: M50 A30
48
Re-viewing films of J.-L. Nicolet. (Revoir les films de J.-L. Nicolet.) (French)
Losanges, No. 13, 41-48 (2011).
Classification: U80 U70 R20 G40 A30
49
Problems for a training camp on the Mathematical Olmpiad. (Aufgaben für ein Trainigscamp zur Mathematik-Olympiade.) (German)
Mathematikinformation, No. 54, 15-25 (2011).
Classification: U40 C90 G90
50
How to teach quadratic curves through a historical overview. (Korean. English summary)
J. Korean Soc. Math. Educ., Ser. E, Commun. Math. Educ. 24, No. 3, 731-744 (2010).
Classification: G70 G40 A30 H30
51
On $J$-conic sections. (English)
Billich, Martin (ed.), Teaching mathematics. II. Innovation, new trends, research. Ružomberok: Verbum, Catholic University in Ružomberok Press (ISBN 978-80-8084-645-9/pbk). Scientific Issues, 81-88 (2010).
Classification: G70 I20
52
Concept formation in mathematics: amphibian between obligation and freedom. (Begriffsbildung in der Mathematik: Amphibium zwischen Zwang und Freiheit.) (German)
Didaktikh., Schriftenr. Didakt. Math. Höheren Sch. 43, 25 p. (2010).
Classification: E40
53
Applications in Archimedes Geo3D. (Anwendungen in Archimedes Geo3D.) (German)
IBDG, Inf.bl. Geom. 29, No. 1, 10-14 (2010).
Classification: U70 G40 I80 R20
54
Another approach to conic sections. (Ein anderer Zugang zu den Kegelschnitten.) (German)
Wurzel 44, No. 8, 176-183 (2010).
Classification: G70
55
Variations on the one-thirteenth hyperbola. (Variationen der Ein-Dreizehntel-Hyperbel.) (German)
MNU, Math. Naturwiss. Unterr. 63, No. 7, 404-406 (2010).
Classification: F60 G70 F50
56
Variations on the one-seventh ellipse. Dedicated to Prof. Dr. Rudolf Fritsch, Ludwig-Maximilians-Universität München, on the occasion of his 71st birthday. (Variationen auf die Ein-Siebtel-Ellipse Herrn Prof. Dr. Rudolf Fritsch, Ludwig-Maximilians-Universität München, zum 71. Geburtstag.) (German)
MNU, Math. Naturwiss. Unterr. 63, No. 4, 200-202 (2010).
Classification: F60 F50 G70
57
Analytical geometry. Two and three dimensions. (English)
New Delhi: Narosa Publishing House (ISBN 978-81-7319-896-0/pbk). xi, 286~p. (2009).
Classification: G75 Reviewer: Rolf Riesinger (Wien)
58
Circular inversion and conic sections. (Inversión circular de las secciones cónicas.) (Spanish)
Rev. Educ. Mat. 24, No. 1, 17-35 (2009).
Classification: G70
59
Planes, ferries and cylinders ‒ some conic sections. (English)
Math. Teach. (Reston) 103, No. 2, 104-107 (2009).
Classification: G70 G40 M50 Reviewer: Peter Dürr (Linkenheim)
60

Result 41 to 60 of 328 total

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