Software Definition and 996 Threads

Hi Can anyone recommend any tools for creating resources for teaching chemistry and molecular sciences? I used rasmol many years ago but I believe that has been superceded by Jmol so i will download that and have a look. I know Isis Draw is free. I have downloaded it and will investigate I...

there's none in photoshop is there any software out here that can perform automatic line art?

Hello guys, I don't know where else to post this but here goes. I'm going to be catching up on a looot of math this year. Unfortunately a lot of the math books that I'll be using only provide the answers to odd numbered questions. And the answers that they do provide a lot of the times "do...

Hi, I am a new member here. Find this forum very interesting. I don't find any request zone. So i am posting here. Forgive me if any mistakes. However, i need a software which will give me the graph of the given equation. That means i will enter an equation and it will show me its graph. Can...

I'm using pwr-tools software to calculate power and torque. I'm not sure of the answer I'm getting is clear. Problem: 30" diameter stainless steel rim with a 3" face. OD is 30"-ID is 29.5" Rpm is 6000 The reducer is 98%efficient and the ratio is 5:1 (please use 98% in the calculation) The...

Hy. I'm looking for a professional astronomy software. Anybody knows ? Thanks!

Hi there... if it is of interest to anyone. I just completed a wind turbine blade design and simulation software fully integrated into the GUI XFLR5 of Mark Drelas XFOIL. If you want to try it out check: qblade.de.to cheers David

currently, I'm be studying on improving fire tube boiler's combustion efficiency. so, i need a software which is applicable to the title above in order to prove my calculation according to the formula. can u tell me what software can be used?

Hi I have a relatively general question. How does a computer software/program (ex. like a printer driver) cause mechanical motion/action (ex. actual printing by the printer)? Another example would be software controlled robots, an input into a computer software causes robots to perform...

I currently use one note, but the drawing functions doesn't even include curves. So basically a big fail. Is there any good software for this?

Hello everyone, I am a software engineer and know very little about lenses but am trying to learn. I am confused about the differences between convex-convex and plano-convex and how to decide how to design an actual plastic lens for a real world application. Here is an example (not real...

I need something that I can use to draw a few simple 2D images, that don't have to look pretty. I really mean "draw" (with the mouse) and not generate from a formula, and a minimum requirement is that the program can at least let me try to draw a smooth curve with the mouse and then smooth it...

So, when I'm looking at the college I'm pretty sure I want to go to, they offer CS. At some colleges, I've noticed that they have CS AND software engineering. So, is there a difference?

do you guys know any free mathematical software that can help me find the area under a graph which can't be intergarted using just a level skills. i already checked autograph but it kinda sucks and i looked other forums but didnt find a thing about this.

Hello! I asked my question in "Computer / Software" tread, but no one was able to help me, so I`l try asking here.. I am in need for software where I could design some system of objects (electro motors, moving parts, custom modeled parts etc. ) with whom I could see "real life" simulation of...

This needed a separate thread. Here is an APL example where it's all done with no interation using N by N matrices in the intermediate propagation of data. Note, code flow in APL statements is right to left. The []IO<-0 sets the "index origin" to zero so a list of numbers and indexing...

How does computer software plot magnetic field lines where the density of lines represent flux density? How does the software know which points to start plotting from in order to come out with a true representation?

I've finished a lab with Scanning Tunneling Microscopy in an upper level physics undergrad course, and now I have about 50 ".ezd" files to analyze. They were produced with the Nanosurf easyScan microscope, which I'm told is quite common in very basic applications. I'm looking for some...

Hi, What is the reason the most of the time, the software are much more expensive than the hardware components. If there is any important machine that is worth millions, then why its software is also too much expensive. Is it because of its complicated tasks or is there any other reason ? !

I've been reading (and a few people mentioned it as well) that electronics, software etc is moving to Asia. By moving I mean that you can hire a company there to do the job for you for less money because salaries there are lower. The reason I can think of is that electronics / software doesn't...

Can i know how this simulation softwares(like Pspice, Psim, MATLAB simulink) work ? Which methods they use to solve any circuit with non-linear elements ? How can we solve any circuit numerically ?

Homework Statement Let S be the union of the two smooth surfaces S1 and S2, where S1={(x,y,z) l x^2+y^2=1, 0\leqz\leq3-sqrt(3)} and S2={(x,y,z) l x^2+y^2+(z-3)^2=4, z\geq3-sqrt(3)}. Use symbolic algebra software to sketch the surface S. Homework Equations The Attempt at a Solution...

hi all bros i am student in pteroleum engineering faculty and i want to know wether there is a software that can give equation for given curve.For example if i import a .jpg file of curve and mark the points in the curve picture and it returns me equation of curve.Is there any such software...

I am sorry because i recreate this post because the old thread is missing =( I need to create a GUI using Visual basic to get input from user.A simple button click will be enough for the GUI.After i get the input, i need to load the input into PIC18F2550 through USB. This will then control my...

Hi, Could you please advise me any software (and location) to draw Feynam diagrams? I knew one softare Feyndraw but lost it... Thanks

I need to include an electric circuit diagram in a .doc file,but I can't find a software to draw it quickly.Does anyone have any good idea?I don't want to use Protel since it is too large

hello, is there any curve fitting software for free for linux user?? I know only gnuplot..is there some more software..? something similar to igor or origin or sigmaplot... Or these scientific fitting software are only available for windows?? please reply me about your free software, which you...

Dear all, Any quantum mechanical software (e.g., Gaussian03) can compute the fundamental frequencies (3N-6) and force constant for each frequency.. I don't understand exactly about force constant..?? For a particular mode of vibration what does this force constant mean? For a molecular with...

hi. I'm creating a game where the main part is exploration. i want a database with the milky way's stars (though I'm not sure how many stars my program will be able to handle at this point) and for the other nearby galaxies i would randomly generate such a database of stars for those galaxies...

What software works best for a student to be able to sit at a blank page and be able to efficiently type formulas without having to fight the software for nomenclature, super/subscript and Greek letters? And how about freebody diagrams, graphs, etc? Isn't there academic software for all of...

Hi, I am 30 years of age and am currently working as a Software Engineer at a major software company. I have an MS and BS in Computer Science. From childhood, I have always been attracted to math, especially pure math. I have participated in numerous regional Olympiads and stood in the top-3...

I have a custom tower with DVD,CD-rom and even floppy disk which I plan on replacing. It has a AMD athlon processor, and I never used this computer online. Recently a friend of mine hooked it up online (long story) without updating for viruses etc. Now the windows startup won't boot. And I have...

Without consideration for cost, but with consideration for features and ease of use, what software do you think is best for producing graphical visualizations of data points, curve fitting, et cetera)? Which ones have the easiest learning curve? Which ones do you use, which ones have you...

hi please help me to download free MCNPX Or MCNP5C ! Where can i download those soft? Or MCNPX visual basic? please help me! tanx

Hello, This is my first time here. Great site! I've searched for a while but didn't find anything. Is there cheap or free software I can download to design 4-bar or whatever linkage mechanisms like in http://www.youtube.com/watch?v=M-tHXsWioR4"? Thanks, B

Hi. This is to all the practicing EEs out there. What are some of the challenges of electrical engineering work? Is it varied? What is your role (esp. wrt to EE technologists/technicians)? Preferably, answers will come from various specialties and roles (please state them). For example...

Hello, i'm a beginner in linux and there's a thing i don't understand and can't find the answer in books nor on the net: software. how is it handled in linux? there are some packages or something. are there separate packages for different distributions? if that's true, that's an unpleasant...

I am looking for freeware which enable the simulation of a system with 3 mirrors, a laser, and a detector. So far I've only managed to find software for lenses on the internet. Would anyone lend a hand? :D

I need to use multimedia elements for a 'Design a Room' project. This project is aimed at 8th grade geometry students. Students will have to make buying decisions based on a given budget. They can buy any thing they want, but the limiting factor will be money. They can paint the walls too. Is...

Hello, I'd like to say hi to everyone since I'm pretty new here, and I guess my first post goes directly to asking a question. Anyway, could someone here recommend me some program for designing parts of a jet or a space vehicle that resembles a delta winged jet. I'm doing this for learning...

Hi ,i am doing an project 'Designing a wing' ,Can anyone please tell me which software do we use for designing a wing,i searched on the web but didn't find the appropriate one. many thanks.

I'm looking for some software which will allow me to view/write/edit LaTeX equations. At the moment I am inputting my equations into this forum and clicking "preview post" in order to get equations in the LaTeX format, which is pretty unsatisfactory (though up till now has been so irregular as...

Hi, New to the forum, I'm currently studying Mechanical Engineering, however me and my flatmate really want to start designing and building circuit boards. I have minimal knowledge when it comes to electronics so there's no time like the present to start learning! What kind of software...

Hello! I am doing an investigation on thermodynamic propeties of certains heavy ions "Alkali-Cloride" ions on the basis of mass spectroscopy and quantum mechanical calculations. For that i use GAMESS as a computer tool to study quantum mechanical properties of those ions (vibration frequency...

As the title suggests, the computer software I am looking for is one that can solve the logic used in a set of alphanumeric characters in a sequence. For example, say the numbers 1Z, 2Y, 6X, 42W, 1806V, 3263442U. Which one is next in sequence? Can you solve it? To solve, let us leave out...

Hey All, Is there a software package that shows a step by step how it solved a problem? I've looked into Maple, and I think that Maple does this, but not sure. I'm looking for software that will help me learn calculus, analysis, linear and abstract algebra. Also, does anyone know about...

Hi, Is there software that I can use while learning calc I-III? I don't need the software to give me the answers, but something that I can use to be able to manipulate formulas. Example. If I have to do a question in the textbook, I would have to write the integral and derivative...

Hello. I have just a few questions for you guys! 1) Software Systems Engineering vs Software Engineering? U of R only has the systems style. 2) Would you take Co-operative education if your school offered it with their engineering degree. (Only reason I do not is it is an extra year to...

i need spice software . any version .

I think Maple and Mathematica are equally powerful, but am curious to see which one is used by more people. Please take 2 seconds to vote for which one you use more. I'm not interested in numerical, so if you use MATLAB but not the symbolic math toolbox, don't vote. Please get as many people...