This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: I merged the 2D plots of two conic sections in 3D.. The original can be viewed here: Circle-trig6.svg: . Modifications made by Kmarinas86.
This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Correction of angle a. The original can be viewed here: Hyperbolic functions.svg: .
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