Plotting a Parabolic Curve for the Equation: SigmaY*(1-(L/k)^2/2*(L/k)c^2)

  • Thread starter Thread starter skaboy607
  • Start date Start date
  • Tags Tags
    Curve
AI Thread Summary
To plot the parabolic curve for the equation sigmaY*(1-(L/k)^2/2*(L/k)c^2), users are advised to consider using advanced mathematical software like Mathematica instead of Excel, which is deemed inadequate for this purpose. While Excel can be used for quick checks and basic plotting, it is not recommended for serious mathematical work. Some users have successfully utilized Excel for various applications, but there is a consensus that specialized programs yield better results. The discussion highlights the limitations of Excel in complex plotting scenarios. Overall, Mathematica is suggested as the superior choice for accurate and detailed curve plotting.
skaboy607
Messages
103
Reaction score
0
Hi,

Just wondering if anyone could tell me how I would go about plotting the parabolic curve for the equation:

sigmaY*(1-(L/k)^2/2*(L/k)c^2)

Any help most appreciated

Will
 
Engineering news on Phys.org
skaboy607 said:
Hi,

Just wondering if anyone could tell me how I would go about plotting the parabolic curve for the equation:

sigmaY*(1-(L/k)^2/2*(L/k)c^2)

Any help most appreciated

Will

What do you mean plotting? Maybe just use Excel? Or do you have access to Mathematica or other math programs?
 
Please do *NOT* use excel. It's not a good program to use.
 
Cyrus said:
Please do *NOT* use excel. It's not a good program to use.

Well, if you're stranded on a desert island, and all you have is Excel, it's fine for quick plot checks and such. I've done all kinds of weird stuff in Excel, including some DSP development and plots, iterative solutions of non-linear simultaneous equations, etc.

Certainly Mathematica is better for plots, and SPICE is better for circuits, and so on. And given my recent arguments with Office 2007 and Vista, I'm not inclined to be suggesting a Microsoft Office solution, but it is a valid thing to use, after all.

No way I'd design a helicopter with Excel, though... :eek: :biggrin:
 
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'
Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
After over 25 years of engineering, designing and analyzing bolted joints, I just learned this little fact. According to ASME B1.2, Gages and Gaging for Unified Inch Screw Threads: "The no-go gage should not pass over more than three complete turns when inserted into the internal thread of the product. " 3 turns seems like way to much. I have some really critical nuts that are of standard geometry (5/8"-11 UNC 3B) and have about 4.5 threads when you account for the chamfers on either...
Back
Top