2020-02-24 in Lifestyle analysis

A $20 hair trimmer worth $1000

2020-02-10 in Lifestyle analysis

How efficient could a refrigerator possibly be?

2020-01-27 in About

Thanks to the creators of the tools I used to build this blog

2020-01-20 in Lifestyle analysis

A lot of thoughts about refrigerators

2020-01-06 in Lifestyle analysis

How can we cut utility costs?

2020-01-06 in Lifestyle analysis

What tracking electricity can illuminate about energy usage

2019-12-09 in Accounting

The difference between budgeting and accounting

2019-11-24 in Accounting

Design of an accounting system - how I designed mine

2019-11-11 in Accounting

Applying the fundamental account theory - more complications

2019-10-21 in Accounting

Applying the fundamental account theory - complications

2019-10-07 in Accounting

Applying the fundamental account theory - simple example

2019-09-30 in Financial independence and investing

How the Dow Jones Average performed during the Great Depression

2019-09-23 in Financial independence and investing

A brief history of the Dow Jones Industrial Average (DJIA) and the Standard and Poor's 500 (S&P500)

2019-09-16 in Financial independence and investing

How to think about stocks, part 1

2019-09-09 in Financial independence and investing

All the equations about saving money in one place

2019-09-02 in Financial independence and investing

The rule of 72, and may I introduce the rule of 108?

2019-08-26 in Loans

A graphical loan calculator

2019-08-19 in Financial independence and investing

"I would gladly pay a dollar tomorrow for a hamburger today" can be formalized by an ODE

2019-08-12 in Financial independence and investing

Is it better to have a windfall or save steadily?

2019-08-05 in Loans

Deferred payments create a piecewise integration problem

2019-07-29 in Loans

Balloon payments change the limits on the integral

2019-07-22 in Loans

The error between the finite difference and continuous solutions is less than 1% in all practical cases

2019-07-15 in Loans

In the limit as \(\Delta t\) approaches 0, the finite difference solution approaches the continuous solution

2019-07-08 in Financial independence and investing

How long does it take to become a millionaire?

2019-07-01 in Financial independence and investing

How long until I can earn my current income with my savings?

2019-06-24 in About

How to read technical, math heavy, material

2019-06-20 in Lifestyle analysis

How much should we pay for better gas mileage?

2019-06-19 in Lifestyle analysis

Home cooking - a job that pays over $40 an hour

2019-06-18 in Lifestyle analysis

The reason for a quantitative view of lifestyle spending

2019-06-12 in Accounting

The fundamental theory of accounting - money is a conserved quantity

2019-06-11 in Accounting

A rant on the importance of accounting

2019-06-07 in Financial independence and investing

Saving time until financial independence has a simple closed-form solution

2019-06-06 in Loans

You do not need calculus to use the loan equations

2019-06-05 in Loans

Loan interest is a function of one parameter but the repayment rate is a function of two

2019-06-04 in Loans

The bank computes loans with a finite difference model

2019-06-03 in Loans

Loans are a first order ordinary differential equation

2019-06-01 in About

Why we should think carefully about money and engineering

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