JEphem
Presentation
Ephemeris
SkyMap
Curve
Date search
Informatic
Library
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Glossary
About
JEphem
Library
Math tips
Math tips
Notations
- I systematically used French notation in math pages. So ambiguaous noations are listed here, with their anglophone correspondances -
TO DO
.
Reference frames
Direct frames
Spherical - cartesian transformations
- transformations between cartesian and spherical coordinates, for positions and velocities.
Matrices
Using matrices to express coordinates
Operations on matrices
(multiplication, determinants, inversion etc...) -
TO DO
Rotation matrices
Trigonometry
sinus, cosinus, tangent
Useful
trigonometric formulae
-
TO DO
Polynom interpolation
Conics
Case of the ellipse