I am a $11^{text{th}}$ grader in China, studying A Level programme in an international school. Chinese is my native language, yet I have a near-native fluency in English. I am a mathematics votary; I can answer most high-school level maths questions, or basic calculus, linear algebra, probability and statistics, and complex analysis questions. I hope I can help you in the journey of that magnificent yet arduous subject. ©