1. Solution of Nonlinear Equations
General Nonlinear equation
Polynomial (roots of polynomial)
Transcendental equation
We are trying to find x when the function is equal to zero. (Zero's of function)
𝑓𝑥=0
𝑥 4 −80𝑥120=0
tan𝑥−tanh𝑥=0

2. Graphical Method
Plot the function vs. the x-axis (x unknown to solve for)
The intersection of the curve with the x-axis is the root (roots)
Functions can also be separated into 2 functions
These functions plotted on the same graph
The intersection will give the root
Limitations
Plotting requires intensive computation
Less accurate