You realize no one INVENTED the goddamn wheel, right? Round flat objects occur everywhere in nature. A wheel is useless without an axle. Someone had to actually INVENT the goddamn axle, that took some actual ingenuity.
>>7640095 You realize no one INVENTED the goddamn axle, right? Long, cylindrical objects occur everywhere in nature. An axle is useless without a wheel. Someone had to actually INVENT the goddamn wheel, that took some actual ingenuity.
/v/irgin here, this may be strange and I'm not even sure it's topical for the board but I have a question.
I have a cousin who has just graduated from college and has become a physicist. He's fucking awesome so I want to get him a Christmas gift but I need opinions on what a physicist would like. Any ideas?
>>7640020 >just graduated from college Booze. He's a recently graduated student. Get him a normal gift like all people his age. You shouldn't buy gifts like books, hobbyshit or novelty items unless you know that person really really well. Get consumables for people who aren't your girlfriend/close friend.
...unless you can afford to buy him a cyclotron or something. Then get him that.
>>7640020 That's a tough question, anon, but I can tell you about something he'll definitely NOT like: popsci books. Non-science people will tend to think we'll love those while nothing could be further from the truth.
pic related, received it years ago, still haven't opened it
Please, if someone can help me with this, i will be indebted to them. Im just..having way too much trouble with this problem. If someone can show the intermediate steps, it would be wildly appreciated (and what rules theyre using)
>>7639885 But seriously, I don't know what to tell you besides work through problems, watch lectures online, etc. There are plenty of youtube lectures and sometimes a second perspective is what helps someone learn. Linear algebra is immensely useful and applicable, so it's worth learning well if you plan to continue in STEM.
>>7639896 I agree partly. Many problems that math asks weren't there in the first place. Someone had to think of them first. And while your sense can "be tickled" by solving problems i dont think that making up problems does so.
>Got a project the other day that was written like a dissertation. >No example code, just paragraphs with minor examples of input/output. >Normies in the class who slept through the required math courses BTFO and start to complain like mad. >Professor don't give a fuck, TA don't give a fuck. I take a few hours and recall my knowledge of math with a few searches on the subject and solve it without any code. Math is so damn good for CS,... Comment too long. Click here to view the full text.
I have very little experience with Octave, I made a code to plot 4 lines on a graph, it worked, but when I changed the name of the file and tried to run it I got "error: 'filename' undefined near line 1 column 1"
clc; x = -3.1415:0.1:3.1415; %limits for x coordinates a = sin(x) %defining a b = x %defining b c = x - ((x.^2)/2) %defining c d = x - ((x.^2)/2) + ((x.^4)/24) %defining d plot (x,a, 'r') hold on; plot (x,b, 'b') hold on; plot (x,c, 'g') hold on; plot (x,d, 'y') hold off; legend ('y=sin(x)', 'y=x', 'x-x^2/2', 'x-x^2/2 + x^4/24')
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