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File: 1450059581796.jpg (75.02 KB,850x400,17:8,CRYPTOGRAPHY.jpg)

CRYPTOGRAPHY ARCHIVES.zip DOWNLOAD NOW!!! Anonymous 12/14/15 (Mon) 02:19:41 4b8113 No.3714 [Open Thread]

Get it now, a great wealth of a resource on Cryptography!

CRYPTOGRAPHY ARCHIVES.zip DOWNLOAD NOW!!

https://www.mediafire.com/?os3yc50tol5slzw

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CRYPTOGRAPHY ARCHIVES.pdf Full Set Combined into one pdf file 24336 pages Anonymous 12/15/15 (Tue) 18:59:15 4b8113 No.3725

File: 1450205967664.jpg (13.5 KB,320x180,16:9,Government Standardization….jpg)

CRYPTOGRAPHY ARCHIVES.pdf Full Set Combined into one pdf file 24336 pages

https://www.mediafire.com/?g9e0yolits9jeyo

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File: 1449126768299.png (35.59 KB,696x302,348:151,Folded-code_Python.png)

Anonymous 12/03/15 (Thu) 07:12:48 511cb2 No.3672 [Open Thread]

So, whst do you guys do for some inspiration? I usually look at other peoples work or watch some tutorials. Pic related

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Anonymous 12/03/15 (Thu) 15:58:09 511cb2 No.3674

I look in the mirror and realize I won't be getting laid without being successful.

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Anonymous 12/04/15 (Fri) 17:59:21 511cb2 No.3680

>>3674

i know that feel

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Anonymous 12/04/15 (Fri) 23:10:27 511cb2 No.3681

>>3672

inspiration: noobody.org

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Anonymous 12/05/15 (Sat) 09:42:03 511cb2 No.3682

Read about mathematical concepts, watch conference talks.

Occasionally a variation of this >>3674

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Anonymous 12/11/15 (Fri) 12:50:55 511cb2 No.3704

I just have a vision in mind, and then go do it. I've never looked at anyone else's code. I've consistently ignored anything anyone says about "good" or "bad" languages, practices, anything. I just focus on my project, not worrying if I'm doing something in a "bad way" or any other distractions. That is all the "inspiration" I need.

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Line - Line Intersection Algorithms Anonymous 08/21/15 (Fri) 05:04:37 f16dfd No.3095 [Open Thread]

So needed an algorithm to detect if 2 lines intersect

SAT doesnt work to well for lines, so i decided to see if i could figure out something myself

Remembered from Geometry class that if a quadrilateral is convex, then its diagonals must intersect, and if its concave, then they dont

So i thought: "if quad(line1point1,line2point1,line1point2,line2point2) is convex, then the lines intersect, otherwise no"

But then i thought: "but wouldnt the 'convex-test' algorithm itself need to test if the diagonals intersect?

Aka:

Line intersection algorithm needs a function to determine whether a quad is concave or not

Concave-test algorithm needs a line intersection algorithm to determine if the quads diagonals intersect

Its a paradox

CPU murdering recursion

Help me

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Anonymous 08/21/15 (Fri) 18:48:33 f16dfd No.3101

3d space or 2d space? Do you actually mean lines or line segments?

If 2d space, just check the slope. They intersect if they aren't parallel.

In 3d space, calculate their closest points. They intersect if their closest point is equal.

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Anonymous 11/29/15 (Sun) 02:21:22 f16dfd No.3660

>>3095

something something vectors.

https://www.cs.utah.edu/~jsnider/SeniorProj/BSP1/default.html

has some code that might help you, such as methods that determine wether a point is in front of or behind a plane.

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Anonymous 12/03/15 (Thu) 03:24:34 f16dfd No.3671

>>3095

https://web.stanford.edu/~liszt90/acm/notebook.html#file8

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Anonymous 12/08/15 (Tue) 00:39:23 f16dfd No.3685

Think of it like back in highschool algebra.

y=mx+b

if line 1 line 2

collision == true

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Anonymous 12/09/15 (Wed) 23:52:34 f16dfd No.3688

>>3685

what about vertical lines?

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File: 1420363460009.jpg (24.4 KB,364x455,4:5,poo.jpg)

Anonymous 01/04/15 (Sun) 09:24:20 df2de3 No.1029 [Open Thread]

Objects are just lists.

How does that make you feel?

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Anonymous 03/25/15 (Wed) 15:00:46 df2de3 No.1825

check out GObjects, the object implementation in GLib that GTK is built on.
(They use hashmaps though nuggah)

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Anonymous 03/25/15 (Wed) 23:32:09 df2de3 No.1827

http://dataorienteddesign.com/dodmain/

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Anonymous 11/28/15 (Sat) 03:32:04 df2de3 No.3650

it make a me feel gooot

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Anonymous 11/28/15 (Sat) 08:11:42 df2de3 No.3651

File: 1448698302882.jpg (45.29 KB,330x357,110:119,Feelsgoodmangreen.jpg)

Objects are just instances of structs.

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Anonymous 11/28/15 (Sat) 18:40:08 df2de3 No.3656

>>3651

In C++, objects and structs are the same thing. struct and class are synonyms; it's valid C++ for a struct to have methods.

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Anonymous 11/26/15 (Thu) 17:14:16 8e6db6 No.3639 [Open Thread]

What's the most basic instruction set a machine must implement in order to solve problems that isn't as impractical as a Turing machine?

I am not talking about real world implementations of simple CPU. I mean something more abstract, since CPU tend to use registers for performance purposes when all you actually need is a way to access stored variables, independently of how you do it.

With "most basic", I mean the bare minimum to run. You will need an add operator and a bitwise negation operator, but there is no need for a sub operation since a + !b = (a - b).

What's the actual bare minimum a virtual machine would need to be operable? I have been searching for a Turing completeness article that goes straight to the point, but they often end up saying "just implement a Turing machine".

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Anonymous 11/27/15 (Fri) 02:40:44 8e6db6 No.3641

>>3639

There's a decent amount of research into that, the minimum required for turing completeness. Also a common theme in esolangs. Binary combinatory is pretty fuggin simple, le copy-paste from http://esolangs.org/wiki/Binary_combinatory_logic

Binary combinatory logic

Binary combinatory logic (BCL) is a complete formulation of combinatory logic (CL) using only the symbols 0 and 1, together with two term-rewriting rules. BCL has applications in the theory of program-size complexity (Kolmogorov complexity).

Contents

Definition

Syntax

Semantics

Rewriting rules for subterms of a given term (parsing from the left):

1100xy → x

11101xyz → 11xz1yz

where x, y, and z are arbitrary terms.

(Note, for example, that because parsing is from the left, 10000 is not a subterm of 11010000.)

The terms 00 and 01 correspond, respectively, to the K and S basis combinators of CL, and the "prefix 1" acts as a left parenthesis (which is sufficient for disambiguation in a CL expression).

There are four equivalent formulations of BCL, depending on the manner of encoding the triplet (left-parenthesis, K, S). These are (1, 00, 01) (as above), (1, 01, 00), (0, 10, 11), and (0, 11, 10).

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Anonymous 11/27/15 (Fri) 19:56:42 8e6db6 No.3644

>>3639

This isn't exactly what you're asking, but I prefer lambda calculus to a turing machine.

https://en.wikipedia.org/wiki/Lambda_calculus

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