미국 국립표준기술연구소(NIST)의 수학 함수 디지털 라이브러리(DLMF)
The NIST Digital Library of Mathematical Functions (DLMF) serves as the authoritative, peer-reviewed successor to the Abramowitz and Stegun Handbook
계산
플라스틱 성형 - 사출 가격 계산기
Great for rapid estimations of the cost of your next plastic injected part. It has a nice database of plastic
지오지브라 공학용 계산기
Basic but does it well, with history, fractions and all features you want from a scientific calculator: GeoGebra Scientific is
무료 FEM을 설치하거나 온라인으로 이용하세요.
FEM software. Install is normally required (Mac, Windows, Linux) … but an online version is available (look at the right
Framacalc 온라인 공동 작업 스프레드시트
Not the most feature-rich spreadsheet, but ZERO install or registration: Framacalc is a collaborative, web-based spreadsheet service hosted by Framasoft
MH-Audio 사운드 및 오디오 계산기(아카이브)
A very good resource for online Audio Calculators, classified into 6 categories: Loudspeaker Crossover Acoustic Electronic Turntable Various that really
온라인 정수열 백과사전(OEIS)
The largest online integer sequences database, searchable. It provides a searchable interface to identify sequences by numerical terms, keywords, or
온라인 단위 변환기
Efficient and well organised (be sure to look at the “by Family” drop-down and not stay at the “Most Popular”
Wolfram Alpha Science Reference – Computational
Provides engineering information and problem solving techniques and maths, all powered by a powerful search engine: WolframAlpha functions as a
통계표
Provides all the statistical tables when MS Excel has no formula to compute it automatically. All these tables here are