module ZephRay;

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标签:计算器

#LetsDriveLCD [13] – Raspberry Pi & 3.5″ TFT & Mathematica

2014 年 3 月 22 日分类:硬件坑#LCD#点屏#计算器#树莓派
Hint: this post is also available in Chinese.

rpi_tft

Unfortunately, The Raspberry Pi is just too thick, otherwise it would be fun to build a calculator around it.

TI-nspire boot splash customization

2014 年 2 月 3 日分类:软件坑#计算器#nspire
Hint: this post is also available in Chinese.

image

4 months ago, critor released mySpire(http://www.cncalc.org/forum.php?mod=viewthread&tid=9441) which allowed modification of nspire CX/CM’s boot splash screen. Since the image itself is signed, there is no way to change the image except modify its position, size, etc.

However there is still a workaround. It’s possible to use third-party payload to display extra things on the screen. So here it is.

MORE

#LetsDriveLCD [12] – CASIO fx-ES clone

2014 年 1 月 25 日分类:硬件坑#计算器#STM32#点屏#LCD
Hint: this post is also available in Chinese.

82ES

A little bit probe and some experiments, and, it is here.

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#JunkCollection ’14

2014 年 1 月 1 日分类:玩机#晒机#计算器#nspire#树莓派#82ES
Hint: this post is also available in Chinese.

showcase14

Greeting from the first day of 2014!

The very first Graphing Calculator with a Color Display – CASIO CFX 9850 Review

2013 年 12 月 14 日分类:玩机#测评#计算器
Hint: this post is also available in Chinese.

Introduction

It has been 27 years since the first graphing calculator – CASIO FX-7000G – was invented. Today, all new graphing calculators have color displays. Believe it or not, back to 1993, there is already a color display graphing calculator: CASIO CFX-9800G. The one I am going to review, it the CFX-9850GB Plus released in 2002.

Exterior

dsc9412.jpg

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