APA 6th Edition Wildberger, N.J. (2017). Rational Trigonometry in Higher Dimensions and a Diagonal Rule for 2-planes in Four-dimensional space. KoG, 21 (21), 47-54. https://doi.org/10.31896/k.21.2
MLA 8th Edition Wildberger, Norman J. "Rational Trigonometry in Higher Dimensions and a Diagonal Rule for 2-planes in Four-dimensional space." KoG, vol. 21, br. 21, 2017, str. 47-54. https://doi.org/10.31896/k.21.2. Citirano 22.01.2021.
Chicago 17th Edition Wildberger, Norman J. "Rational Trigonometry in Higher Dimensions and a Diagonal Rule for 2-planes in Four-dimensional space." KoG 21, br. 21 (2017): 47-54. https://doi.org/10.31896/k.21.2
Harvard Wildberger, N.J. (2017). 'Rational Trigonometry in Higher Dimensions and a Diagonal Rule for 2-planes in Four-dimensional space', KoG, 21(21), str. 47-54. https://doi.org/10.31896/k.21.2
Vancouver Wildberger NJ. Rational Trigonometry in Higher Dimensions and a Diagonal Rule for 2-planes in Four-dimensional space. KoG [Internet]. 2017 [pristupljeno 22.01.2021.];21(21):47-54. https://doi.org/10.31896/k.21.2
IEEE N.J. Wildberger, "Rational Trigonometry in Higher Dimensions and a Diagonal Rule for 2-planes in Four-dimensional space", KoG, vol.21, br. 21, str. 47-54, 2017. [Online]. https://doi.org/10.31896/k.21.2
Sažetak We extend rational trigonometry to higher dimensions by introducing rational invariants between k-subspaces of n-dimensional space to give an alternative to the canonical or principal angles studied by Jordan and many others, and their angular variants. We study in particular the cross, spread and det-cross of 2-subspaces of four-dimensional space, and show that Pythagoras theorem, or the Diagonal Rule, has a natural generalization for such 2-subspaces.