... Conditions are like those inside a white dwarf. ... It is not well understood what changes are caused inside the star, but the star certainly loses mass between leaving the main sequence and becoming a helium-burning horizontal branch star. When core helium burning ends, the low mass star rejoins the asymptotic giant branch, where the hydrogen and helium burning shells interact, causing a series of thermal pulses. ... Stars less than one third of a solar mass will not ignite helium at all. ...

... Fortran . Storage rules Dummy argument is a quantity in the specification of a procedure, function or subroutine. Actual argument is a quantity in the call of a procedure, function or subroutine. ... Becomes 101 END PROGRAM EXAMPLE SUBROUTINE SUB(X, Y, Z) IMPLICIT NONE REAL, INTENT(IN) :: X REAL, INTENT(INOUT) :: Y REAL, INTENT(OUT) :: Z Y = Y**2 Z = X + Y END SUBROUTINE SUB In Fortran there is really only one kind of argument usage, called argument association. ...