CHINKEII's notes

CHINKEII's notes Blogger level

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Latest articles

2025-03-16
Build a homemade optical tweezer In order to capture a 5um particle, it's easier to use the geometric optics theory to get start with. So I chose a bigger particle (5um) which is simi
- 2025-03-16
- 40
- 0
- 0
2024-11-10
Ch8-Matrices and vector spaces Mathematical Methods for Physics and Engineering 1. Basic definitions: (0) Definition of linear vector space: a set of \mathbf{a},\mathbf{b},\mathbf{c
- 2024-11-10
- 31
- 0
- 0
- MMPE
2024-11-03
Ch7-Vector algebra Mathematical Methods for Physics and Engineering 1. Some conclusions: (1) Ratio theorem: Line segment AB is divided into AP and PB. AP:PB = \lambda:\m
- 2024-11-03
- 20
- 0
- 0
- MMPE
2024-10-26
Ch6-Multiple integrals Mathematical Methods for Physics and Engineering 1. Some integrals: (1) 2-D integrals: I=\int_{x=a}^{x=b}\left\{\int_{y=y_1(x)}^{y=y_2(x)}f(x,y) dy\ri
- 2024-10-26
- 22
- 0
- 0
- MMPE
2024-08-31
Ch5-Partial differentiation Mathematical Methods for Physics and Engineering 1. Some properties of partial differentiation: 1.1 Clairaut's theorem: Let f: \mathbb{R}^n \to \mathb
- 2024-08-31
- 57
- 0
- 0
- Math
- MMPE
2024-08-25
Python basic certificate T＆F quizzs: #1. Do not need to complie. [T. But need an interpreter, usually cython.] #2. Grouping sentences with parentheses. [F. It's space. Indenta
- 2024-08-25
- 33
- 0
- 0
2024-08-19
Ch4-Series and limits Mathematical Methods for Physics and Engineering 1. Basic sum of series [Page 117-118]: Basic series: \begin{array}{ll} Arithmetic\ series:S_N=\frac{N
- 2024-08-19
- 37
- 0
- 0
- Math
- MMPE
2024-08-18
Ch3-Complex numbers and hyperbolic functions Mathematical Methods for Physics and Engineering 1. Complex number division [Page 90-91]: \frac{z_1}{z_2}=\frac{x_1x_2+y_1y_2}{x_2^2+y_2^2}+i\frac{x_2
- 2024-08-18
- 46
- 0
- 0
- Math
- MMPE
2024-08-16
2FSK over the air 1. What's 2FSK (two frequency represent 0 and 1) 2. Connect CC1101 with Arduino See 2ASK over the air.
- 2024-08-16
- 49
- 1
- 0
- Experiments&Design
- RF
2024-08-16
2ASK over the air 1. What's 2ASK (simply ON-OFF) 2. Connect CC1101 with Arduino Need to connect CC1101 first. I used Arduino, and here's pinout of CC1101 module:
- 2024-08-16
- 74
- 0
- 0
- Experiments&Design
- RF

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