June 2024
Beginner to intermediate
352 pages
9h 29m
Korean
Content preview from 개발자를 위한 필수 수학
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35
1
장
기초 수학과 미적분
관계상 자세히 살펴보지는 않겠습니다. 하지만 본질적으로 우리는 무리수 지수를 유리수로 근
사해 계산합니다. 즉, 소수점 이하 일정 자리까지만 계산하는 컴퓨터가 수행하는 방식과 같습
니다.
예를 들어
π
는 소수점 이하 자릿수가 무한대입니다. 하지만
11
자리에 속하는
3
.
1415926535
만 취해 계산하면
π
를 유리수
31415926535
/
10000000000
로 근사할 수 있습니다. 이렇게
하면
687
.
2913
이 되며 계산기의 결과와 거의 일치합니다.
88 687 2913
31415926535
10000000000
.
1.7
로그
로그
logarithm
는 특정 수와 밑이 있을 때 거듭제곱 횟수를 구하는 수학 함수입니다. 처음에는 흥
미롭지 않을 수 있지만 실제로 로그는 다양하게 사용됩니다. 지진 측정부터 스테레오 음량 관
리까지 로그는 어디에나 존재합니다. 또한 머신러닝과 데이터 과학에도 많이 사용되죠. 실제로
로그는
6
장에서 살펴볼 로지스틱 회귀의 핵심입니다.
‘
2
를 몇 번 거듭제곱하면
8
이 될까요?’라는 질문으로 시작해보죠. 이를 수학적으로 표현하는
한 가지 방법은 지수에
x
를 사용하는 것입니다.
2
x
= 8
우리는 직관적으로
x
=
3
이라는 것을 알고 있습니다. 하지만 이 수학 연산을 좀 더 우아하게 표
현할 방법이 필요합니다. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.