[Boards: 3 / a / aco / adv / an / asp / b / biz / c / cgl / ck / cm / co / d / diy / e / fa / fit / g / gd / gif / h / hc / his / hm / hr / i / ic / int / jp / k / lgbt / lit / m / mlp / mu / n / news / o / out / p / po / pol / qa / r / r9k / s / s4s / sci / soc / sp / t / tg / toy / trash / trv / tv / u / v / vg / vp / vr / w / wg / wsg / wsr / x / y ] [Home]
4chanarchives logo
Archived threads in /sci/ - Science & Math - 279. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.

Post your lecture waifus

https://www.youtube.com/watch?v=fSGWVou89sg
10 replies and 1 images submitted. Click here to view.
>>
>>7960701
go to bed jafari, unless you're in the OC area then I would love to take you for coffee
>>
>>7960701
why do you faggots have to be so cringey
>>
would sex

File: what-HIV-looks-like-v1[1].png (44 KB, 780x304) Image search: [Google]
what-HIV-looks-like-v1[1].png
44 KB,
Is it true there is a HIV cure hidden somewhere?
40 replies and 4 images submitted. Click here to view.
>>
>>7960433
Of course, it is that the top 1% just keep its hidden from us.

Those damn billionaires, how did they ever get the wisdom to put on condoms before having sex?
>>
>>7960436
:\
>>
>>7960439
I mean, when I go to the pharmacy and ask for condoms they always tell me that condoms are for the top 1% only, and also only if you are white and male.

I am so persecuted!

Why are they hiding the cure like that?

HUUUUUUURRRRRRRRRRRR

File: 2016-03-27 13.12.48.jpg (429 KB, 712x1023) Image search: [Google]
2016-03-27 13.12.48.jpg
429 KB,
check out ny easter present!
36 replies and 8 images submitted. Click here to view.
>>
great.
now can you put your dick and there and go fuck yourself
>>
dfuq is dat
>>
>>7960368
Looks like a chastity cage

File: Richard-Stallman.jpg (171 KB, 600x393) Image search: [Google]
Richard-Stallman.jpg
171 KB,
Why do I feel dumber having taken anti-depressants for about a year (Zoloft)? I used to solve things so quickly, and my brain used to run so quickly, but now I just feel dead and it takes me a while to think. What's going on?
10 replies and 1 images submitted. Click here to view.
>>
>>7960308
I'll tell you all about it when I see you again.
>>
Brain damage from the placebos?
>>
>>7960308
you're depressed thats whats going on
its possible your antidepressants have stopped having their desired effect

File: image.jpg (27 KB, 480x360) Image search: [Google]
image.jpg
27 KB,
Alright fags, I'm learning math on my own -- for fun. I'm almost done with Calculus I. Which courses should I do next or even concurrently? What's the most intuitive order of maths to learn? Thanks.
40 replies and 5 images submitted. Click here to view.
>>
Let me explain better. If you were designing a bachelors to grad level program of pure math from the ground up, which classes would you require and in what order?
>>
just watch anime instead
math is useless
>>
Let me ask you this: What comes after 1?

File: Bpd4__AIQAAxE6o (1).jpg (144 KB, 1024x640) Image search: [Google]
Bpd4__AIQAAxE6o (1).jpg
144 KB,
Do CNS stimulants exist in nature?

or are there only mild ones? How about for someone used to amphetamines, is there just nothing in the natural world that will seem effective at this point?
15 replies and 1 images submitted. Click here to view.
>>
>>7959986
what is caffeine?
>>
>>7959998
Very weak central stimulant, mostly peripheral nervous system effects. It makes your heart rate go up and slightly more talkative and that's about it, i think even nicotine is better in regards to affecting the brain.
>>
Um.. cocaine?

File: VS.jpg (13 KB, 475x210) Image search: [Google]
VS.jpg
13 KB,
It's no argument that in order to understand higher level mathematics, one must first build a strong foundation.

And any foundation is built through the process of learning.

So /sci/, what are some good foundation mathematics books?

And no, contrary to popular belief, calling a book 'too easy' that someone else posted on a Botswanian trading card collection forum doesn't make you any smarter.

However, well constructed logic retorts might help.
6 replies and 1 images submitted. Click here to view.
>>
Lang's Algebra gives a good introduction to abstract algebra
>>
>>7959603
http://4chan-science.wikia.com/wiki/Mathematics
>>
>>7961710
this is ass

>>7959603
you need to know how to manage basic arithmetic of numbers and know some special functions like trigonometry. after that you don't need much to start learning linear algebra and analysis

my favorite books are Hoffman Kunza for lin alg and Tao Analysis I for analysis

File: 1458534208046.png (123 KB, 2480x1754) Image search: [Google]
1458534208046.png
123 KB,
What are pear-shaped flasks and thiele tubes used for?
13 replies and 2 images submitted. Click here to view.
>>
File: images.png (6 KB, 173x292) Image search: [Google]
images.png
6 KB, 173x292
>>7959317
>thiele tubes
used to be part of melting point apparatus
>>
>pear-shaped flasks
I'm not quite sure, but it seems to be used for small samples in distillation and/or rotary evaporation.
>>
pear-shaped flasks are more stable in ring-mounts, i'm pretty sure

File: image.png (160 KB, 400x400) Image search: [Google]
image.png
160 KB,
Why wouldn't a sentient, highly intelligent Artificial Intellience be nihilistic?
18 replies and 2 images submitted. Click here to view.
>>
>>7958856
Because we would design it to not be.
>>
>>7958858
>programming a truly sentient AI to NOT do something
See OP pic related.
>>
>>7958856
>>7958860
sameFAG

File: o-FLOATING-IN-OCEAN-facebook[1].jpg (842 KB, 1536x1066) Image search: [Google]
o-FLOATING-IN-OCEAN-facebook[1].jpg
842 KB,
What are the odds of a persona successfully swimming across the ocean to another country without drowning, or being eaten by sharks with only the assistance of a life vest and maybe some insulation to prevent hypothermia?
10 replies and 3 images submitted. Click here to view.
>>
the odds are 1:infinity
>>
I think people have swam the English Channel, so it's possible if the distance is short enough.
>>
The human body just doesn't have enough energy to actually make that journey. You'd die of thirst, starvation, hypothermia, or just drown before you even make it close to halfway.

File: 1451432321538s.jpg (8 KB, 250x152) Image search: [Google]
1451432321538s.jpg
8 KB,
diagnose me...
traits of concern, manipulative, lying, cheating, worrisome, depressed
i have no motivation and continue to repeat mistakes that harm others including cheating lying and just general fuckery. i don't believe i am a sociopath because of how anxious i can get. i look at egos more than morals. i just took a formal test online that i dont think i should even believe because of how often i lie out of impulse. please help.
16 replies and 1 images submitted. Click here to view.
>>
You might be retarded.
>>
> traits of concern, manipulative, lying, cheating, worrisome, depressed
Diagnosis : You're a jew
>>
>>7961614

see a psychologist

File: 1458214872427.jpg (104 KB, 500x415) Image search: [Google]
1458214872427.jpg
104 KB,
What's the day to day job like of a typical run of the mill mechanical engineer or electrical engineer?
13 replies and 2 images submitted. Click here to view.
>>
>>7961385

Inb4 sucking cock
>>
>>7961385
sucking cock
>>
>>7961392

See

>>7961386

File: halfpwer.gif (12 KB, 1152x672) Image search: [Google]
halfpwer.gif
12 KB,
What is the significance of the number 0.707 or 3dB or 1/sqrt(2)? I see it everywhere, e.g. bandwidth, quality factor, RMS, damping coefficient, and cutoff frequency. Are they all related somehow?
8 replies and 1 images submitted. Click here to view.
>>
>>7961326
.707 = cos(45) = sin(45).

-3dB denotes the bandwidth of a signal. That's mostly convention but it is also proportional to [math] \frac{1}{2 \pi \tau} [/math].
>>
>>7961338
Every constant is proportional to a constant.
>>
>>7961338
>-3dB denotes the bandwidth of a signal

How so? Last time I checked it denoted an attenuation by the factor of 2^(-1) (or by the factor of 2 if speaking of power).

File: ss (2016-03-21 at 05.39.39).jpg (47 KB, 452x379) Image search: [Google]
ss (2016-03-21 at 05.39.39).jpg
47 KB,
so suppose i have a function f(z,t), is it possible to plot it using the plot(or any other) function at say t=3 without declaring t:=3 ?
8 replies and 6 images submitted. Click here to view.
>>
File: ss (2016-03-25 at 04.50.42).jpg (94 KB, 876x448) Image search: [Google]
ss (2016-03-25 at 04.50.42).jpg
94 KB, 876x448
bump
>>
File: dispersion.png (22 KB, 387x394) Image search: [Google]
dispersion.png
22 KB, 387x394
poop
>>
File: ex-axionex.gif (344 KB, 400x400) Image search: [Google]
ex-axionex.gif
344 KB, 400x400
bump

File: 1454057961180332716.jpg (96 KB, 374x393) Image search: [Google]
1454057961180332716.jpg
96 KB,
How to learn analysis? When it comes to calculations or practical applications I have no problems, but when it comes to proofs I don't even know where to start
7 replies and 1 images submitted. Click here to view.
>>
Delete system32.
>>
sasuga frogposter
>>
>>7961066
Easy. I'll tell you all about it when I see you again.

banner
banner
Pages: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104] [105] [106] [107] [108] [109] [110] [111] [112] [113] [114] [115] [116] [117] [118] [119] [120] [121] [122] [123] [124] [125] [126] [127] [128] [129] [130] [131] [132] [133] [134] [135] [136] [137] [138] [139] [140] [141] [142] [143] [144] [145] [146] [147] [148] [149] [150] [151] [152] [153] [154] [155] [156] [157] [158] [159] [160] [161] [162] [163] [164] [165] [166] [167] [168] [169] [170] [171] [172] [173] [174] [175] [176] [177] [178] [179] [180] [181] [182] [183] [184] [185] [186] [187] [188] [189] [190] [191] [192] [193] [194] [195] [196] [197] [198] [199] [200] [201] [202] [203] [204] [205] [206] [207] [208] [209] [210] [211] [212] [213] [214] [215] [216] [217] [218] [219] [220] [221] [222] [223] [224] [225] [226] [227] [228] [229] [230] [231] [232] [233] [234] [235] [236] [237] [238] [239] [240] [241] [242] [243] [244] [245] [246] [247] [248] [249] [250] [251] [252] [253] [254] [255] [256] [257] [258] [259] [260] [261] [262] [263] [264] [265] [266] [267] [268] [269] [270] [271] [272] [273] [274] [275] [276] [277] [278] [279] [280] [281] [282] [283] [284] [285] [286] [287] [288] [289] [290] [291] [292] [293] [294] [295] [296] [297] [298] [299] [300] [301] [302] [303] [304] [305] [306] [307] [308] [309] [310] [311] [312] [313] [314] [315] [316] [317] [318] [319] [320] [321] [322] [323] [324] [325] [326] [327] [328] [329] [330] [331] [332] [333] [334] [335] [336] [337] [338] [339] [340] [341] [342] [343] [344] [345] [346] [347] [348] [349] [350] [351] [352] [353] [354] [355] [356] [357] [358] [359] [360] [361] [362] [363] [364] [365] [366] [367] [368] [369] [370] [371] [372] [373] [374] [375] [376] [377] [378] [379] [380] [381] [382] [383] [384] [385] [386] [387] [388] [389] [390] [391] [392] [393] [394] [395] [396] [397] [398] [399] [400] [401] [402] [403] [404] [405] [406] [407] [408] [409] [410] [411] [412] [413] [414] [415] [416] [417] [418] [419] [420] [421] [422] [423] [424] [425] [426] [427] [428] [429] [430] [431] [432] [433] [434] [435] [436] [437] [438] [439] [440] [441] [442] [443] [444] [445] [446] [447] [448] [449] [450] [451] [452] [453] [454] [455] [456] [457] [458] [459] [460] [461] [462] [463] [464] [465] [466] [467] [468] [469] [470] [471] [472] [473] [474] [475] [476] [477] [478] [479] [480] [481] [482] [483] [484] [485] [486] [487] [488] [489] [490] [491] [492] [493] [494] [495] [496] [497] [498] [499] [500] [501] [502] [503] [504] [505] [506] [507] [508] [509] [510] [511] [512] [513] [514] [515] [516] [517] [518] [519] [520] [521] [522] [523] [524] [525] [526] [527] [528] [529] [530] [531] [532] [533] [534] [535] [536] [537] [538] [539] [540] [541] [542] [543] [544] [545] [546] [547] [548] [549] [550] [551] [552] [553] [554] [555] [556] [557] [558] [559] [560] [561] [562] [563] [564] [565] [566] [567] [568] [569] [570] [571] [572] [573] [574] [575] [576] [577] [578] [579] [580] [581] [582] [583] [584] [585] [586] [587] [588] [589] [590] [591] [592] [593] [594] [595] [596] [597] [598] [599] [600] [601] [602] [603] [604] [605] [606] [607] [608] [609] [610] [611] [612] [613] [614] [615] [616] [617] [618] [619] [620] [621] [622] [623] [624] [625] [626] [627] [628] [629] [630] [631] [632] [633] [634] [635] [636] [637] [638] [639] [640] [641] [642] [643] [644] [645] [646] [647] [648] [649] [650] [651] [652] [653] [654] [655] [656] [657] [658] [659] [660] [661] [662] [663] [664] [665] [666] [667]
Pages: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83] [84] [85] [86] [87] [88] [89] [90] [91] [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102] [103] [104] [105] [106] [107] [108] [109] [110] [111] [112] [113] [114] [115] [116] [117] [118] [119] [120] [121] [122] [123] [124] [125] [126] [127] [128] [129] [130] [131] [132] [133] [134] [135] [136] [137] [138] [139] [140] [141] [142] [143] [144] [145] [146] [147] [148] [149] [150] [151] [152] [153] [154] [155] [156] [157] [158] [159] [160] [161] [162] [163] [164] [165] [166] [167] [168] [169] [170] [171] [172] [173] [174] [175] [176] [177] [178] [179] [180] [181] [182] [183] [184] [185] [186] [187] [188] [189] [190] [191] [192] [193] [194] [195] [196] [197] [198] [199] [200] [201] [202] [203] [204] [205] [206] [207] [208] [209] [210] [211] [212] [213] [214] [215] [216] [217] [218] [219] [220] [221] [222] [223] [224] [225] [226] [227] [228] [229] [230] [231] [232] [233] [234] [235] [236] [237] [238] [239] [240] [241] [242] [243] [244] [245] [246] [247] [248] [249] [250] [251] [252] [253] [254] [255] [256] [257] [258] [259] [260] [261] [262] [263] [264] [265] [266] [267] [268] [269] [270] [271] [272] [273] [274] [275] [276] [277] [278] [279] [280] [281] [282] [283] [284] [285] [286] [287] [288] [289] [290] [291] [292] [293] [294] [295] [296] [297] [298] [299] [300] [301] [302] [303] [304] [305] [306] [307] [308] [309] [310] [311] [312] [313] [314] [315] [316] [317] [318] [319] [320] [321] [322] [323] [324] [325] [326] [327] [328] [329] [330] [331] [332] [333] [334] [335] [336] [337] [338] [339] [340] [341] [342] [343] [344] [345] [346] [347] [348] [349] [350] [351] [352] [353] [354] [355] [356] [357] [358] [359] [360] [361] [362] [363] [364] [365] [366] [367] [368] [369] [370] [371] [372] [373] [374] [375] [376] [377] [378] [379] [380] [381] [382] [383] [384] [385] [386] [387] [388] [389] [390] [391] [392] [393] [394] [395] [396] [397] [398] [399] [400] [401] [402] [403] [404] [405] [406] [407] [408] [409] [410] [411] [412] [413] [414] [415] [416] [417] [418] [419] [420] [421] [422] [423] [424] [425] [426] [427] [428] [429] [430] [431] [432] [433] [434] [435] [436] [437] [438] [439] [440] [441] [442] [443] [444] [445] [446] [447] [448] [449] [450] [451] [452] [453] [454] [455] [456] [457] [458] [459] [460] [461] [462] [463] [464] [465] [466] [467] [468] [469] [470] [471] [472] [473] [474] [475] [476] [477] [478] [479] [480] [481] [482] [483] [484] [485] [486] [487] [488] [489] [490] [491] [492] [493] [494] [495] [496] [497] [498] [499] [500] [501] [502] [503] [504] [505] [506] [507] [508] [509] [510] [511] [512] [513] [514] [515] [516] [517] [518] [519] [520] [521] [522] [523] [524] [525] [526] [527] [528] [529] [530] [531] [532] [533] [534] [535] [536] [537] [538] [539] [540] [541] [542] [543] [544] [545] [546] [547] [548] [549] [550] [551] [552] [553] [554] [555] [556] [557] [558] [559] [560] [561] [562] [563] [564] [565] [566] [567] [568] [569] [570] [571] [572] [573] [574] [575] [576] [577] [578] [579] [580] [581] [582] [583] [584] [585] [586] [587] [588] [589] [590] [591] [592] [593] [594] [595] [596] [597] [598] [599] [600] [601] [602] [603] [604] [605] [606] [607] [608] [609] [610] [611] [612] [613] [614] [615] [616] [617] [618] [619] [620] [621] [622] [623] [624] [625] [626] [627] [628] [629] [630] [631] [632] [633] [634] [635] [636] [637] [638] [639] [640] [641] [642] [643] [644] [645] [646] [647] [648] [649] [650] [651] [652] [653] [654] [655] [656] [657] [658] [659] [660] [661] [662] [663] [664] [665] [666] [667]
[Boards: 3 / a / aco / adv / an / asp / b / biz / c / cgl / ck / cm / co / d / diy / e / fa / fit / g / gd / gif / h / hc / his / hm / hr / i / ic / int / jp / k / lgbt / lit / m / mlp / mu / n / news / o / out / p / po / pol / qa / r / r9k / s / s4s / sci / soc / sp / t / tg / toy / trash / trv / tv / u / v / vg / vp / vr / w / wg / wsg / wsr / x / y] [Home]

All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.
If a post contains personal/copyrighted/illegal content you can contact me at [email protected] with that post and thread number and it will be removed as soon as possible.
DMCA Content Takedown via dmca.com
All images are hosted on imgur.com, send takedown notices to them.
This is a 4chan archive - all of the content originated from them. If you need IP information for a Poster - you need to contact them. This website shows only archived content.