# Contents:
1. Capacitive Reactance
2. Passive Low Pass Filter
3. Passive High Pass Filter
4. Passive Band Pass Filter
5. Active Low Pass Filter
6. Active High Pass Filter
7. Active Band Pass Filter
8. Butterworth Filter Design
9. Second Order Filters
10. State Variable Filter
11. Band Stop Filter
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# Features:
+ Very simple user interface
+ Quick and easy navigation
+ Share for your friend
+ Free apps
Good lucky!
Last updated on 2018年04月02日
此版本包含小幅錯誤修正和一般改善。請更新至最新版本,以獲得最佳體驗。