24-311: Numerical Methods

 

Recitation 6: Exam 1 review

Numerical methods so far...

Taylor series

f(x_0 + x) = f(x_0)\\ \hspace{10em}+ \frac{(x-x_0)^1}{1!} f'(x_0)\\ \hspace{10em}+ \frac{(x-x_0)^2}{2!} f''(x_0)\\ \hspace{10em}+ \frac{(x-x_0)^3}{3!} f'''(x_0)\\ \hspace{10em}+ \cdots\\ \hspace{10em}+ \frac{(x-x_0)^n}{n!} f^{(n)}(x_0)\\

Root finding: bisection method

Given \(f(x)\), find \(x\) such that \(f(x) = 0\)

1 new function evaluation at every incremental step

Root finding: false position method

Given \(f(x)\), find \(x\) such that \(f(x) = 0\)

1 new function evaluation at every incremental step

Optimization: gradient descent

Given \(f(x)\), find its minima

Optimization: gradient descent

Given \(f(x)\), find its minima

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