I am being critical of the contents of this post. This post covers mostly on Time Value of Money, mathematics on compound interest on invested money and loans. This material is the basic part of financial mathematics.

Yes, financial mathematics is complex but the contents here does not touch on probability and statistics for finance/financial engineering. Financial mathematics covers more of:

• Random Walks
• Brownian Motion
• Ito/Stochastic Calculus
• Partial Differential Equations
• Black-Scholes Model