Next: Other Activities Up: M.E. Bailey Previous: M.E. Bailey Contents . Jonathan Horner, a former summer student at Armagh (now at the University of Bern, Switzerland), Wyn Evans (University of Cambridge) and Mark Bailey have completed two papers on the dynamical evolution of outer solar system objects known as Centaurs. These are large, so-called `giant' comets, circulating on dynamically unstable orbits confined approximately between the orbits of Jupiter and Neptune. ...

A completely new possibility of Fortran 90 is recursion. Note that it requires that you give a new property RESULT for the output variable in the function declaration. ... Here follows two examples, first recursive calculation of the factorial, then recursive calculations of the Fibonacci-numbers. ... The listings of the routines follow, the output variables are called FAC_RESULT and FIBO_RESULT , respectively. ... Not only functions but also subroutines can be recursive. ...