Oops… STEP 3 Maths Question (1996)

Here’s an interesting and doable STEP question on complex numbers (STEP 3 1996). Unlike most STEP questions, this one is doable: Not that hard to figure out, but still needs some thought. Give it a try!

Knowledge you probably need (But not MUSTs):

Solving Trignometry Equation
De Moivre’s Theorem
Vieta’s

… Read the rest

Computer Science Pre-Release Material Solution (9608/23)

Here is the sample solution to the Computer Science Pre Release Material (9608/23).

Task 1

CS-PreRelease_Task1.py

Task 2

CS-PreRelease_Task2.py

Task 3

CS-PreRelease_Task31.py

CS-PreRelease_Task32.py

CS-PreRelease_Task33.py

CS-PreRelease_Task34.py

CS-PreRelease_Task35.py

Sample Solution for worksheet 1-3 (Bank Interest Rates)

CS-A1-Worksheet1

CS-A1-Worksheet2

CS-A1-Worksheet3… Read the rest

安卓4.2.2版本root教程

前天终于下定决心将本人的nexus4给root了，谁知这远比苹果的无脑越狱困难许多，在无数纠结后，终于成功了。现在发个教程供大家参考。需要windows vista以上操作系统。适用于4.2.2及4.0以上安卓系统。

Root方法-步骤

电脑–>安装ADB&FastBoot驱动程序

被root设备–>解锁bootloader（部分手机无需解锁）–>刷入第三方recovery（可选）–>Root设备–>大功告成！… Read the rest