Ngô Quốc Anh

September 30, 2007

Hyperbolic functions on plane

Filed under: Linh Tinh — Ngô Quốc Anh @ 10:07

Minh họa các hàm lượng giác và các hàm hyperbolic trên mặt phẳng tọa độ.

Animated plot of the trigonometric (circular) and hyperbolic functions. In red, curve of equation x^2 + y^2 = 1 (unit circle), and in blue, x^2- y^2 = 1 (equilateral hyperbola), with the points (\cos (\theta),\sin (\theta)) and (1,\tan(\theta)) in red and (\cosh(\theta), \sinh (\theta)) and (1,\tanh (\theta)) in blue.

Nguồn: http://en.wikipedia.org/wiki/Image:HyperbolicAnimation.gif

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