Recent content by NathanM
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Fortran Fortran77 woes- single parameter least squares minimisation stuck
lol oh don't worry, I'm going to be getting a lot more familiar with fortran77 over the next few years. We're only really getting into it now, but it'll be used in my lab reports later in the semester and my dissertation over the summer. Then, I hear reactor control is still done in...- NathanM
- Post #12
- Forum: Programming and Computer Science
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Fortran Fortran77 woes- single parameter least squares minimisation stuck
I wasn't sure if h1a would need stating before the loop or not, now I do. c works for me. It's an intermediate value that has no use outside of its function, and it's only definition is as the sum of c(i) array- Chi-squared. I like to be different. That's what it does so works for me to call it...- NathanM
- Post #10
- Forum: Programming and Computer Science
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Fortran Fortran77 woes- single parameter least squares minimisation stuck
I've written this function to replace the assignment statements in the two interior loops, leaving the summation statements in. DO 20 i= 1,17 h1a= h1a chisqa= chisqa + c(Cs(i),h1loop1,t(i),Ctdiff(i),Ct(i),Cs(i),eCt(i)) 20 END DO...- NathanM
- Post #8
- Forum: Programming and Computer Science
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Fortran Fortran77 woes- single parameter least squares minimisation stuck
Done! So as the assignment statements stand right now, are they not running through the calculation for every array labelled parameter using the i=1,17 statement? If no, it'll be better to move all of the assignment statements to a function and just execute that 17 times, yes? I'm not great...- NathanM
- Post #7
- Forum: Programming and Computer Science
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Fortran Fortran77 woes- single parameter least squares minimisation stuck
Hi! I'll reply using bullet points for ease of reading. As always, thanks for taking the time to read through my mess :) Comments first! - RE: commented out variables- yeah I've commented them out whilst I work on the single parameter minimisation. They'll come back in one by one once it's...- NathanM
- Post #5
- Forum: Programming and Computer Science
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Fortran Fortran77 woes- single parameter least squares minimisation stuck
Hi! Thanks for the reply :) I'm compiling with a program called Force2.0, but it's definitely meant to be fortran 77. With skills like mine, wouldn't be surprised if I've screwed up a few times! I'll bullet point responses to keep things clear(ish). (44)- Riiiight. So, having i=1,17 there isn't...- NathanM
- Post #3
- Forum: Programming and Computer Science
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Comp Sci Fortran77 woes- single parameter least squares minimisation stuck
Hey guys! Having issues with a code I'm writing. It doesn't fit the typical format and I may have already accidentally posted it in the wrong forum, so here's a copy of what was there with the newest version of the code. It'll (eventually) be a four-parameter least squares minimisation, but for...- NathanM
- Thread
- Fortran77 Least squares Parameter Squares Stuck
- Replies: 1
- Forum: Engineering and Comp Sci Homework Help
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Fortran Fortran77 woes- single parameter least squares minimisation stuck
Hey guys! Having issues with a code I'm writing. It'll (eventually) be a four-parameter least squares minimisation, but for the moment I'm just trying to get the single parameter version to work. I've got the first module done but, when I run it it gets caught up in a loop and doesn't actually...- NathanM
- Thread
- Fortran77 Least squares Parameter Squares Stuck
- Replies: 13
- Forum: Programming and Computer Science
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Physics What Career Options are Available in the Field of Nuclear Physics?
Thanks for the replies! @Astronuc- Yeah I understand that- I chose my undergraduate degree based on interest with little intent to work in the area, the postgraduate study is based upon an intent to work in the industry as well as interest. And while they may be a bit different to each...- NathanM
- Post #6
- Forum: STEM Career Guidance
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Physics What Career Options are Available in the Field of Nuclear Physics?
So I'm to understand no one on this whole forum works in the nuclear industry or has interest in this particularly large field, or is it more that nobody feels like sharing and helping?- NathanM
- Post #2
- Forum: STEM Career Guidance
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Graduate More questions about Higgs for the layman
The mobile phone disagrees with you :p The theory is one thing, but we've all seen how things tend to change a bit when reputable evidence comes about. Sure it might take a while, but unless you have a time machine you can't say for certain what may or may not happen in the future regarding...- NathanM
- Post #14
- Forum: High Energy, Nuclear, Particle Physics
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Graduate More questions about Higgs for the layman
Is science fact not based in science fiction? I doubt anyone knows the feasibility of such technologies at this point and none could accurately state for or against, considering the understanding of the Higgs field is so limited.- NathanM
- Post #11
- Forum: High Energy, Nuclear, Particle Physics
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Graduate How Does Fractional Charge in Quarks Relate to Electroweak Symmetry Breaking?
So it's more a case of convenience vs reassignment of values eh!- NathanM
- Post #10
- Forum: High Energy, Nuclear, Particle Physics
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Physics What Career Options are Available in the Field of Nuclear Physics?
Hello all! I've graduated my undergraduate Masters in Physics with astrophysics this summer, and am now looking into doing a postgraduate Masters in The Physics and Technology of Nuclear Reactors as the area holds great interest for me. The problem is I don't really know anything about the...- NathanM
- Thread
- Careers Nuclear Nuclear physics Physics
- Replies: 6
- Forum: STEM Career Guidance