Intro to operations (1)

After knowing the numbers, we want to play around with them, such as add, subtract, multiply, divide, those actions are called "operations". 

Some basic operations:

  • Addition
  • Subtraction
  • Multiplication 
  • Division
Some more operations:
  • Power    
  • Root      
  • Exponential
  • Logarithm
Some advanced operations:
  • Factorial   
  • Integral     (in Calculus)
  • Differentiate   (in Calculus)

Power and Root are big families, the "square" and "cube" you are familiar with are really special case of power. (Square is power of 2, and cube is power of 3). Similarly, square root and cube root are special case of root.

More stories of operation see the Intro to operation(2)

Comments

Post a Comment

Popular posts from this blog

Path of Mathematics

Image
You might feel math is difficult. Well, yes and no. Math is difficult because you have to understand everything to move on, rather than just dump them in your brain without chewing. However, math is approachable. Math is not a magic, but a systematic subject. There's clear paths. The Path of Math: Stage 1: Math before college Arithmetic Algebra Geometry Trigonometry Precalculus Stage 2: First two years college (aka lower level math) Calculus (3-4 courses) Differential Equation Linear Algebra Statistics Stage 3: Third and Fourth college (aka upper level math) Introduction to proof Algebra  Analysis Other topics such as Topology, Differential Equations, depends on the program The earlier subjects are usually prerequisite for later subjects. For example, Analysis is proof based. So taking a proof class will help you success in Analysis.  There are many good resources to help learning, I have shared some website I personally like on another blog named Useful Math Reso...
Read more

Useful Math Resources

This is a list of math resources collected from the college STEM students. In case you don't know what is STEM, it is short for Science, Technology, Engineering and Mathematics :) 1. All Level Resources (K12 - College) There are some pretty organized math websites, which covers most of the topics from basic arithmetic to college math, such as Algebra or Precalculus. Khan Academy  Feature: Videos, cover all level of math topics, have good quizes https://www.khanacademy.org/math/precalculus/trig-equations-and-identities-precalc/using-trig-identities-precalc/a/trig-identity-reference Math is Fun Feature: Text file & pictures, easy to understand https://www.mathsisfun.com/ 2. College Math Paul's Online Math notes Feature: Nice class handout, cover first two years college math classes such as calculus, linear algebra and differential equations. http://tutorial.math.lamar.edu/ 3 Blue 1 Brown Feature: Videos, connect abstract math concept to g...
Read more

Study Tips for math

A few study tips to share, hope it helps you study math more efficiently. 1. Budget your study time. The general rule of thumb is for every 1 credit, each week you will have about 1 hour in class time, and should have 3 hours outside of class to study.  So if you are taking a 4 credit class, each week you need 4 hours in class + 12 hours outside of class, which is 16 hours in total. Think about how many hours you will study each day throughout the week, write them down on a planner and try your best to commit to it. 2. Preview before class. Always read the textbook/handout before each class, have an idea what topics, definitions and theorems  you will learn in the class. By doing this, you can focus more on the part you don't understand in class. This will help you make best use of class time. 3. Always ask questions. When you have a question during the class, raise hand and ask for it. Don't be afraid because high chances are your classmates also confused. By asking questions...
Read more