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Result 61 to 80 of 490 total

The ladder ‒ an elementary-mathematical problem with numerous associations. (Die Leiter ‒ ein beziehungsreiches elementarmathematisches Problem.) (German)
Int. Math. Nachr., Wien 222, 21-32 (2013).
Classification: G60
61
A generalization of isogonal points. (O generalizare a punctului izogon.) (Romanian. English summary)
Gaz. Mat., Ser. B 118, No. 4, 169-172 (2013).
Classification: G60 G40
62
Chordic vs. CORDIC: how calculators and students compute sines and cosines. (English)
Math. Teach. (Reston) 106, No. 6, 472-478 (2013).
Classification: G60 N50
63
An Ionescu-Weitzenböck-type inequality. (Inegalităţi de tip Ionescu-Weitzenböck.) (Romanian. English summary)
Gaz. Mat., Ser. B 118, No. 1, 1-10 (2013).
Classification: G40 G60
64
An inequality between the sides and the bisectors of a triangle. (O inegalitate între laturile şi bisectoarele unui triunghi.) (Romanian. English summary)
Gaz. Mat., Ser. B 118, No. 3, 116-118 (2013).
Classification: G40 G60
65
Calculating distances in a configuration containing circles. (Calculul unor distante in configuraţii care conţin cercuri.) (Romanian)
Gaz. Mat., Ser. B 118, No. 12, 555-562 (2013).
Classification: G40 G60
66
Connecting slope, steepness, and angles. (English)
Math. Teach. (Reston) 107, No. 4, 272-279 (2013).
Classification: I20 G60
67
Building sinusoids. (English)
Math. Teach. (Reston) 106, No. 8, 592-598 (2013).
Classification: G60 I20 D80
68
How much can you bench? (English)
Math. Teach. (Reston) 106, No. 6, 414-417 (2013).
Classification: G40 G60
69
Equivalence relations across the secondary school curriculum. (English)
Math. Teach. (Reston) 106, No. 7, 508-512 (2013).
Classification: E60 F40 H20 G60 I40
70
Investigating teachers’ trigonometry teaching efficacy. (English)
Ubuz, Behiye (ed.) et al., CERME 8. Proceedings of the eigth congress of the European Society of Research in Mathematics Education, Antalya, Turkey, February 6‒10, 2013. Ankara: Middle East Technical University (ISBN 978-975-429-315-9). 1419-1428 (2013).
Classification: C70 G60
71
Encounter of two cylinders. (Ontmoeting van twee cilinders.) (Dutch)
Uitwiskeling 29, No. 1, 9-12 (2013).
Classification: G40 G60 I20
72
Plane geometry and trigonometry ‒ related fields: do they work hand in hand? (English)
Far East J. Math. Educ. 11, No. 1, 43-74 (2013).
Classification: G40 G60 D39
73
How long does the sun shine on a clear day? (Wie lange scheint heute die Sonne?) (German)
Monoid 33, No. 116, 33-39 (2013).
Classification: M50 G60
74
MacCool’s second proof of Morley’s miracle. (English)
Ir. Math. Soc. Bull. 72, 75-77 (2013).
Classification: G60
75
Sun, moons, planets. Astronomical construction kits and their basics. (Sonne, Mond, Wandelsterne. Astronomische Bausätze und ihre Grundlagen.) (German)
IBDG, Inf.bl. Geom. 32, No. 2, 28-32 (2013).
Classification: M50 G40 G60 U60
76
Proof without words: monotonicity of $\tan x/x$ on $(0, π/2)$. (English)
Coll. Math. J. 44, No. 5, 420-420 (2013).
Classification: I20 G60
77
Proof without words: monotonicity of $\sin x/x$ on $(0, π/ 2)$. (English)
Coll. Math. J. 44, No. 5, 408-408 (2013).
Classification: I20 G60
78
Proof without words: the formulas of Hutton and Strassnitzky. (English)
Math. Mag. 86, No. 5, 350 (2013).
Classification: G60
79
Derivation of the law of cosines via the incircle. (English)
Forum Geom. 13, 133-134 (2013).
Classification: G60 Reviewer: Francisco Vittone (Rosario)
80

Result 61 to 80 of 490 total

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