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Here you can find some of my IDL (Interactive Data Language) programmes.
Returns the Julian date for a given calendar date (year, month, day and optionally hour, minute and second).
Returns the calendar date for a given Julian date.
Computes the dot product (= scalar product) of two vectors or arrays of vectors.
Computes the cross product of two 3-component vectors or arrays of 3-component vectors.
Returns a structure containing the values of some natural constants in SI units.
Creates a log of variables (their names and current values).
Hintergrundbild: Io. NASA/JPL/University of Arizona.