[Info-vax] VMS process communication

Arne Vajhøj arne at vajhoej.dk
Fri Mar 17 16:06:43 EDT 2023


On 3/17/2023 11:02 AM, Johnny Billquist wrote:
> On 2023-03-15 21:58, Arne Vajhøj wrote:
>> Transcendental numbers are the real numbers that are
>> not algebraic. All the "weird" numbers like e, pi,
>> results from logarithmic or trigonometric functions (except
>> for a a few selected inputs).
> 
> Am I confused? I was under the impression that pi comes from the 
> division of the diameter with the circumference of a circle.
> No logarithmic or trigonometric anywhere near that...

The above was really just a list of 4 examples. I did
not intend to imply any overlap of the list.

But there is an overlap. Pi can be calculated by both
a trigonometric and a logarithmic function.

$ type pi.for
       program pi
       implicit none
       write(*,*) dacos(-1.0d0)
       write(*,*) cdlog((-1.0d0,0.0d0))/cdsqrt((-1.0d0,0.0d0))
       end
$ link pi
$ run pi
   3.14159265358979
(3.14159265358979,0.000000000000000E+000)

Arne




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