Recent content by bruce999

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    Other Becoming an Engineer: Considerations and Personal Experiences

    FredGarvin Sounds like a better place where you are - US I assume. Here in the UK most engineering companies won't even give you an interview unless you have extensive experience. There is fierce competition for jobs offered by large companies, who offer reasonable starting salaries, and...
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    Other Becoming an Engineer: Considerations and Personal Experiences

    You were obviously fortunate. I had 4hrs of labs a week for the first 2 years. 4 Hrs out of 26 a week and you can't deny the fact that those labs always boil down to maths. I have nothing against maths I'm just saying that it IS the core of engineering. Every subject - Thermodynamics, Fluid...
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    Other Becoming an Engineer: Considerations and Personal Experiences

    Very simply. NO. You visit uni engineering departments and they look cool - loads of engines and wind tunnels and testing machines. When you get there you rarely, if ever, use any of that stuff. Its maths, maths, maths and very long hours. You also won't get a job unless you've got loads of...
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    Thermo Exam Question: Estimate Temp & Pressure After Compression

    Hello. I have a thermodynamics exam tomorrow. This is a past exam question and I'm not doing very well with it. If anyone has any ideas please help! A charge enters a spark ignition engine at 330K and 1 bar, and is isentropically compressed through a ratio of 7:1. Estimate the temp and...
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    How Do You Calculate Temperature and Pressure in Isentropic Compression?

    Exam revision question. Help! Hello. I have a thermodynamics exam tomorrow. This is a past exam question and I'm not doing very well with it. If anyone has any ideas please help! A charge enters a spark ignition engine at 330K and 1 bar, and is isentropically compressed through a ratio of...
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    Mathematica How to find the value for phi at a specific time in Mathematica?

    Ok i tried that and i still get: "Evaulate[phi[0.22]]" as the answer instead of a value. :confused:
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    Mathematica How to find the value for phi at a specific time in Mathematica?

    Hello again. I have a solution for a simple differenttial eqn. "Simpletreb=First@NDSolve[{phi''[t] == -d Sin[phi[t]], phi[0] == (3π/4), phi'[0] == 0}, phi[t], {t, 0, 1}]" After some plots and other calculations i need to find the value for phi at t=0.224511 so i input...
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    Mathematica Mathematica Problem - Help Solving Differential Eqns

    Thanks a lot! Very much appreciated. You can tell I'm new to this. I've been trying everything for days now. Problem solved! :smile:
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    Mathematica Mathematica Problem - Help Solving Differential Eqns

    I'm very new to mathematica and have been trying to use it for solving differential eqns. I've done a simple equation and managed to do a plot of it which looks correct. All day I've been trying to get findroot to work so i can find the exact point at which it crosses the x-axis but keep having...
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