[ARCHIVED THREAD] - Integral Calculus Is Breaking Me (Page 1 of 4)
Posted: 3/21/2017 9:24:43 PM EDT
| Dual integrals, Lagrange multipliers, directional derivatives and the gradient vector. It's fucking me. Any advice from the hive? |
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Stick with it...then realize you'll likely never use it again  
calc 1, took 3 attempts, 2 took 2, 3 took 1, diff equations 1. I suspect you could do a bar chart on my party to study ratio based o this. |
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Last time I used it was when doing Laplace transforms in senior design controls class, over 20 years ago.
In real life, unless you're in research or going for an advanced degree, you can use MathCAD or something similar. I do a bit of regression and linear programming these days, but I still use excel or mini tab. |
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Last time I used it was when doing Laplace transforms in senior design controls class, over 20 years ago. In real life, unless you're in research or going for an advanced degree, you can use MathCAD or something similar. I do a bit of regression and linear programming these days, but I still use excel or mini tab.
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Dual integrals, Lagrange multipliers, directional derivatives and the gradient vector. It's fucking me. Any advice from the hive? Linear algebra was the only class I ever failed. When I took it again I allocated three times the study/practice time and aced it. Especially if most math comes easily to you and integral calculus doesn't, do it more. Practice, practice, practice. Never used the stuff after that class. |
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push, push, push through it.
The grade is not a big deal, but you must pass and get the BS degree You will not make less than 100k working for someone else in a few years if you keep pushing on and get that BS degree.. You may not use calculus directly, but it taught you how to think logically, understand what can be done, and that is the key to the BS field. |
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Dual integrals, Lagrange multipliers, directional derivatives and the gradient vector. It's fucking me. Any advice from the hive? I'm graduating with a BS in Mech E in 5 months. I don't remember how to do any of that stuff, though I do recall learning it. Sounds hard!! |
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i hated calc 3 with a seething passion during my undergrad. i am doing a masters now and everything "clicks" better. the pain is part of getting better at analytical thinking |
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If I had it to do all over again, I would have pursued a career that required me to use Integral Calculus very frequently. Two reasons:
1. The time I spent learning it wouldn't have been wasted. Seriously, I couldn't test out of it now you put a gun to my head. I've forgotten all of it. "Your brain is a muscle" as they say, and it does atrophy. 2. The number of people who still know how to do it 15+ years removed from college (and can't be bothered to teach it) are very few in number. For certain professions, this makes you one very valuable motherfucker. |
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I'm doing Laplace transforms now in process and systems dynamics class. It's actually kind of making sense now, though. For instance, about 4 years ago I needed to develop a formula to determine the amount of bulk solid contained inside an oddly shaped bin varied by the height of the pile which could be measured by dip stick. By taking all the external measurements (custom welded vessel) and using the angle of repose for the material, I used my calculus III to derive the function for the radar level transmitter. Better experience than anything the math professor attempted in college, someday I'll pay it forward and guest lecture at a local community college or something. |
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That one was easy compared to my advanced statistics class although I hated calc. I think mathematical modeling (basically coming up with mathematical formulas to describe stuff you observe in the real world) was my favorite.
I use none of it in real life occasionally I use some computer math stuff like simple math in different base number system lime binary or octal but rarely. |
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I work in graphics software. I single handedly changed the display scheme in a new product we were developing. I take 3d boundary curves and map them into 2d parameteric range. For periodic surfaces like spheres and cones, the boundaries in 2d may be open with endpoints on the parametric rectangle if they cross the parameter seam. For these open curves, i close them with pieces fron the parametric rectangle to make them closed. Now the closed boundaries divide the rectangular region into parts of the surface we want to keep, and parts we want to discard. I use LINE INTEGRALS and GREENS THEOREM to find the area enclosed by a closed 2d boubdary curve. Based on the sign of the integral, i use a hardware accelerated method to fill the polygons with essentially "keep" or "discard" color. Once the png is produced this way, one merely has to apply this texture to an ordinary grid mesh.
It made our rendering 1000 times faster and about halved the memory used by a honest constrained tessellation. I got big monies out of that. Fuck anyone who says you won't use integral calculus. |
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If I had it to do all over again, I would have pursued a career that required me to use Integral Calculus very frequently. Two reasons: 1. The time I spent learning it wouldn't have been wasted. Seriously, I couldn't test out of it now you put a gun to my head. I've forgotten all of it. "Your brain is a muscle" as they say, and it does atrophy. 2. The number of people who still know how to do it 15+ years removed from college (and can't be bothered to teach it) are very few in number. For certain professions, this makes you one very valuable motherfucker. |
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If I had it to do all over again, I would have pursued a career that required me to use Integral Calculus very frequently. Two reasons: 1. The time I spent learning it wouldn't have been wasted. Seriously, I couldn't test out of it now you put a gun to my head. I've forgotten all of it. "Your brain is a muscle" as they say, and it does atrophy. 2. The number of people who still know how to do it 15+ years removed from college (and can't be bothered to teach it) are very few in number. For certain professions, this makes you one very valuable motherfucker. |
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I work in graphics software. I single handedly changed the display scheme in a new product we were developing. I take 3d boundary curves and map them into 2d parameteric range. For periodic surfaces like spheres and cones, the boundaries in 2d may be open with endpoints on the parametric rectangle if they cross the parameter seam. For these open curves, i close them with pieces fron the parametric rectangle to make them closed. Now the closed boundaries divide the rectangular region into parts of the surface we want to keep, and parts we want to discard. I use LINE INTEGRALS and GREENS THEOREM to find the area enclosed by a closed 2d boubdary curve. Based on the sign of the integral, i use a hardware accelerated method to fill the polygons with essentially "keep" or "discard" color. Once the png is produced this way, one merely has to apply this texture to an ordinary grid mesh. It made our rendering 1000 times faster and about halved the memory used by a honest constrained tessellation. I got big monies out of that. Fuck anyone who says you won't use integral calculus. Without being too exact (I don't want or need to be up in your business)...how much can a guy like you expect to earn salary wise, say...10 years after graduation? And how confident are you that you'll always be employable until say...age 65? |
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Integral calculus is the basis of all tree volumetric equations as a tree is essentially a cylinder, and in order to determine the volume of that space you must create and model equations using integrations.
Don't ask me to do it now, 20 years later, but I do still remember how to do derivatives. |
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I learn math very quickly. But then I forget it fast if I don't use it. If I could do integral calculus for a living (that wasn't a teaching job) I'd do it for sure. Quoted:
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If I had it to do all over again, I would have pursued a career that required me to use Integral Calculus very frequently. Two reasons: 1. The time I spent learning it wouldn't have been wasted. Seriously, I couldn't test out of it now you put a gun to my head. I've forgotten all of it. "Your brain is a muscle" as they say, and it does atrophy. 2. The number of people who still know how to do it 15+ years removed from college (and can't be bothered to teach it) are very few in number. For certain professions, this makes you one very valuable motherfucker. |
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Start a new thread. Post one of these http://i.imgur.com/BEOnQ9K.jpg Realize that you came to the wrong place to talk about calculus.
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PChem was HORRIBLE. I barely passed that stuff. All greek. Tell him to rough it out, he won't need it again. Quoted:
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My son passed Physical Chemistry and is hopefully going to pass Quantum Chemistry. He's had 5 calculus classes and is still struggling. Once DiffEq came around, it was "holy shit, P Chem makes sense!" but DiffEq still raped us. Kharn |
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PEMDAS threads (as I've come to call them) frequently run 20+ pages of arguing. Quoted:
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Start a new thread. Post one of these http://i.imgur.com/BEOnQ9K.jpg Realize that you came to the wrong place to talk about calculus. |