Quadratics is plural...?
Added an explanation as to how to factor quadratics, two methods (with examples), one for simple cases and then the general case. Discussed an issue that needs care when using the quadratic formula, as well as an example to make things clear what's going on.
* fix: imgur to s3 for englsh guide without conflict
(cherry picked from commit 9c9f15abf4e755feab79ef7090dacdcf497ea7b6)
* fix: revert unrelated changes
Made precise that intercepts are (x,y)-points and not numbers. Added more examples to show different possibilities that can occur and removed the oversized image of a few short lines of equations.
Linear equations are not just equations of lines (in 2-dimensions) so this has been addressed. Also tried to discuss the simplest case, lines, with less nondescript terminology.
Not all curves can be represented by functions (e.g., a circle) so they cannot simply be interchanged. Any line that "crosses" a graph touches it at one point but isn't tangent, and other minor typos/formatting addressed.
* Corrected errors and expanded discussion
Discussed rational vs. irrational numbers, gave examples, added discussion into the difficulty in studying them as well as real world examples to exhibit their vast importance and utility.
* Update index.md
-Initially, some of the headings were not formatted as headings, so emphasising the headers as strong was suitable
-Moreover, it was written that the diagonals of a rectangle is "mutually perpendicular", which is not true for a rectangle, so I removed it to avoid confusion
-Changed the mathematical equations through inserting "" and using LaTex Equation Editor to copy the image address of the equation into the round brackets
-Added more info about triangles by specifying the types of triangles
-Added info on a Trapezium as a 2D Polygon
* Create complex-number-plane
* Change Title to complex-plane
* Rename complex-plane to complex-plane.md
* Rename guide/english/mathematics/complex-plane.md to guide/english/mathematics/complex-plane/index.md
* Create Basic-Simplex-Solution
Basics on Solving Linear Problems using the Primal Simplex Method and additional information on Alternative Simplex Algorithms.
* Rename guide/english/mathematics/Basic-Simplex-Solution to guide/english/mathematics/linear-equations/basic-simplex-solution/index.md
