math
Table of Contents
Math
- add, subtract
- multiply, divide
- exponent, logarithm
- fractions, decimals
- Algebra: the study of generalizations of arithmetic operations
- Geometry: the study of shape
- Trigonometry: the study of the triangle
- Sets - set theory
- Classifications - real, integer, whole, rational, etc.
- Dimensions - 2D, 3D, 4D, nD
- Logic - if then else
- Number Systems - base-10, base-2, etc.
- Number theory - prime numbers
- Calculus: the mathematical study of continuous change
- Differential Calculus: rates of change and slopes of curves
- Integral Calculus: accumulation of quantities and the areas under and between curves
- Analysis, modeling
- Simple Linear Regression
- Multiple Linear Regression
- Multi-Variate Linear Regression
- NN Variations
- Deep Learning
Gil Strang's course 18.065
- Linear Algebra (Matrix Math)
- Statistics and Probability
- Optimization (Calculus)
- Deep Learning (Neural Network)
project-based. no tests. “that's how people learn”
Timeline
- 2000 BC, Babylon, algebra in use
- 10th century BCE, in China, ancient texts describe the use of _arrays_ to solve simultaneous equations, including the concept of determinants.
- 6th century BCE, in Greece, Pythagoras…
- 4th century BCE, in India, the Hindu numerals 1-9 and 0 are in use.
- 3rd century BCE, in Greece, Euclid and Archimedes…
- 300 BC, School of Athens, classical Greece, Euclid, Geometry, shapes, circles, triangles
- 300 BC, Greece, diaphantus
- 5th century CE, in India, first use of decimal places.
- 600 AD, India, Brahmagupta
- 780-850 CE, in Bahgdad, the Hindu numerals spread to the Islamic world thanks to Persian mathematician al-Khwarizmi, who also coins the word _al-jabr_, or in english, _algebra_.
- 1250 CE, in Europe, the Hindu numerals and decimal system arrived in the works of al-Khwarizmi, brought back from the holy lands by the crusaders, replacing the Greek and Roman numeral systems.
- 1545-1850 CE, in Europe and Japan, _array_ methods arrive from China, and the word _matrix_ is coined to replace the word _array_.
- 1600 Decartes, 32 youngers than Galileo , Cartesian Coordinate System connection between algebra and geometry
- 1600 galileo
- 1700 Isaac Newton, Gottfried Leibnez, Euler, another guy, in Europe, invented calculus among other things.
- Niels bohr, goes beyond Newton in subparticle and interplanetary physics.
- Hermann Minkowski 4d space time 1908
- Pythagoras Euclid Archimedes
- Classical Hellenic Hellenistic
- Copernicus
Miscellaneous Topics
Euler's Number
Euler's Formula
Power Function
Exponentiation
Exponential Function
Notes
[W,s,v] = svd((repmat(sum(x.*x,1),size(x,1),1).*x)*x');
in week 1 > parameter learning > gradient descent for linear regression
batch gradient descent
use lsode to solve multiple equations using calculus
https://www.gnu.org/software/octave/doc/v4.0.1/Ordinary-Differential-Equations.html
References
- Cheat Sheets: <http://tutorial.math.lamar.edu/>
Unicode Characters Used in Equations
math.txt · Last modified: 2024/02/08 05:22 by jhagstrand