zohnannor

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• settings.json

Ethosa

# author: Ethosa
from enum import Enum

numbers = '0123456789'
operators = '+-/*'


class Type(Enum):
    NUMBER = 0
    OPERATOR = 1

Ethosa

# author Ethosa
# add image named "1.jpg" to folder and run it!
from PIL import Image
from random import randint

GRID_KOEF = 65


def triangulize_block(img):
    w, h = img.size

zohnannor

Proving that 1 + 1 = 2 in Rust

The fact that 1 + 1 is equal to 2 is one of those things that is so obvious it may be hard to justify why. Fortunately mathematicians have devised a way of formalizing arithmetic and subsequently proving that 1 + 1 = 2. Natural numbers are based on the Peano axioms. They are a set of simple rules that define (along with a formal system) what natural numbers are. So in order to prove 1 + 1 = 2 in Rust we first need a formal system capable of handling logic. The formal system that we'll be using is not some random crate, but Rust's type system itself! We will not have any runtime code, instead the type checker will do all the work for us.

Implementing the Peano axioms

First let's go trough the Peano axioms. The first axiom is that "Zero is a natural number". Basically what it says is that zero exists. In order to express that in the type system, we just write:

shoghicp

# Minecraft PE v0.6.1 alpha Protocol #9

# 49 identified Packets
[C ==> S] 0x82 LoginPacket (String, int, int)
[C <== S] 0x83 LoginStatusPacket (int)
[C ==> S] 0x84 ReadyPacket (bits[8])
[C <== S] 0x85 MessagePacket (String)
[C <== S] 0x86 SetTimePacket (long)
[C <== S] 0x87 StartGamePacket (long, int, int, int, float, float, float)
[C <== S] 0x88 AddMobPacket (int, int, float, float, float, byte, byte, Metadata)