Dear loyal customers, we regret to inform you that our beloved keisan English website will be closing its virtual doors on Wednesday, September 20, 2023. It is with a heavy heart that we bid farewell to this platform that has served you for numerous years. We would like to express our deepest gratitude for your unwavering support and trust in our services throughout this journey. While it is indeed a sad occasion, we kindly ask for your understanding during this time. Yours faithfully, The Website Manager.
https://keisan.casio.com/keisan/abolition.php