So I installed the Bash add-on along with gcc and gfortran. It turns out that some of my grandson's homework problems had equations of the form H(t) = 100 + 75 * exp(-t/20) * cos(pi/4 * t). The problem wanted solutions for several values of t. For an old FORTRAN programmer (started back in '70), this is as good as it gets! A statement function, a few invocations and, voila', the answers!
program bungee
parameter (pi = 3.14159)
parameter (pi4 = pi / 4.0)
H(t) = 100. + 75.*exp(-t/20)*cos(pi4*t)
print 1, 0,H( 0.)
print 1, 1,H( 1.)
print 1, 2,H( 2.)
print 1, 4,H( 4.)
print 1, 6,H( 6.)
print 1, 8,H( 8.)
print 1,12,H(12.)
1 format(i2,2x,F10.6)
end program bungee
0 175.000000
1 150.446594
2 100.000084
4 38.595192
6 99.999786
8 150.274002
12 58.839130
It just doesn't get any better than this!