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Calculating Credit Card Debt with Code: Is Math Essential for Programmers?

2025-08-24

This article explores whether math is essential background knowledge for programmers. By building an Elixir program simulating credit card repayment, the author demonstrates how simple formulas and programming can solve real-world problems, such as calculating compound interest and repayment schedules. The program's simulation shows that slightly increasing the minimum payment percentage or adding a small extra monthly payment significantly reduces repayment time and saves substantial money, highlighting the importance of understanding compound interest and financial planning. Even without advanced math, practical application is shown.

Development

Three Tips to Conquer Difficult Problems in Software Development

2025-08-23

Conquering tough problems in software development isn't easy. This article suggests three practical tips: First, actively listen to your teammates' difficulties and directly ask, "Why is this hard?" Second, encourage deep exploration of seemingly impossible solutions, investigating their feasibility under specific conditions. Even if not ultimately adopted, this process sparks new ideas. Finally, design multiple solutions; even if seemingly time-consuming, a deeper understanding of the problem provides more leverage for the final implementation. Ultimately, collective understanding is far more important than the code itself.

Development