Recent content by jedishrfu

Reminds me of the late great Jackie Gleason: To the moon, Alice!

For me its a casual hobby that I play with when the weather is cooler and Orion is easily visible in the night sky ala Fall and Winter nights. @collinsmark is a more gifted, serious and either wealthy or seriously in-debt astronomer as you see from his cool setup. Mine is a simple Orion 4"...

Welcome to PF! A good resource for math related tutorials is Mathispower4u.com It hosts about 5000 ten minute video clips on all the math needed by a freshman in college. https://mathispower4u.com/

I think he meant to say it was 300,000,000 meters per sec as that is what he used in the actual calculation. But in any event, a teacher would likely have taken off points for that. Good catch @DaveC426913

Sounds about right ie 8.33 minutes. You can google check it too.

Dont feel bad even the Scarecrow in the Wizard of OZ got the pythagoream theorem wrong. https://woodycreative.com/wizard-of-oz-scarecrow-formula-not-so-good/#ll

are you missing the RETURN stmt: RETURN SQRT(@a*@a + @b*@b);

This may help. Its a fan wiki: https://imperial-radch.fandom.com/wiki/Anaander_Mianaai https://imperial-radch.fandom.com/wiki/Ancillary

Yes, physicists use mostly applied math to do their work things like calculus, differential equations, linear algebra, statistics. Some branch into more esoteric realms like differential geometry, or the math used in string theory. Others do experiments to test theories and how they apply in...

Can you tell us what Flow-TV is? Is it just scheduled TV ie watch an episode once a week? or is it an app that gives you access to the History Channel in Europe? On another note, I had a friend here get interested in black smithing and now he's about to get a job teaching it in a local...

My FORTRAN experience was first with Fortran-IV and later with Honeywell Fortran-Y which was IV with some added features like the CHARACTER datatype and freeform coding. (no more punch card limitations ie code col 7 thru 72 with line nos in cols 1-5, continuation indicator col 6 and sequence nos...

But the common block was a feature for the times. Subroutine calls in FORTRAN were not recursive. Subrourine calls did not pass by value. Arguments often used one of several CPU registers for their address. Using common blocks allowed for faster processing as indexing was somewhat slower. It...

Yes to @sophiecentaur. The common block was a way to share variables across the program space. It's akin to a global struct used in C programming. pros: - improved program speed since they weren't needed in the subroutine call. - common block names had to be the same wherever used - common...

One could also write the data in a user defined environment variable to be read by the second program. It would have to be formatted character data. This approach is good for a small number of variables vs a file approach which can handle large amounts of data.

To extend this answer, you can either write the variable values in binary or as formatted character data. The binary approach preserves the value of the data better than the formatted character approach which may round the data depending on the precision you use.