模除｜剰余演算｜Modulo
- 2023.07.17
- Mathematics Modulo
Definition of a % n = r | a mod n = r $$ a = nq + r; \quad q, r \in \mathbb{Z} \quad |r| < |n| $$ In programming languages 程式語言 演算子 餘數的符號（正負） C (ISO 1999) % / div 與被除數相同 C++ (ISO 2011) % / div 與被除數 ...
A1go
Leetcode # 459. Repeated Substring Pattern
- 2023.07.17
- LeetCode
Problem n := len(s) Check 「∃ s’ = s[i:n], 0 < i < n s.t. s == s’ * k, k >= 2」 https://leetcode.com/problems/repeated-substring-pattern/ First Solution Time Complexity: O(len(s) * ...
Leetcode # 28. Find the Index of the First Occurrence in a String
- 2023.07.17
- Hash Function Knuth-Morris-Pratt (KMP) Algorithm LeetCode Rabin-Karp Algorithm String-Searching Algorithm
https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/ First Solution Time Complexity: O(len(haystack) + len(needle)) Space Complexity: O(len(haystack)) (The input and outpu ...
[Machine Learning] Regularization
- 2023.07.13
- Machine Learning Regularization
Regularization lets you keep all of your features, but they just prevent the features from having an overly large effect, which is what sometimes can cause overfitting. Cost Function with Regularizati ...
[Python] Logistic Regression with scikit-learn
from sklearn.linear_model import LogisticRegression ... # Fit the Model lr_model = LogisticRegression() lr_model.fit(X, y) # Make Predictions y_pred = lr_model.predict(X) # Calculate Accuracy print("A ...
[Calculus] Chain Rule
- 2023.07.13
- Calculus
$$ \frac{d g[f(x)]}{d x} \bigg|_{x = a} = \frac{d g(y)}{d y} \bigg|_{y = f(x)} \cdot \frac{d f(x)}{d x} \bigg|_{x = a} $$
[Python] Linear Regression with scikit-learn
scikit-learn is a free software machine learning library for the Python programming language. It features various classification, regression and clustering algorithms including support-vector machines ...
聲樂課* 2023/07/12 氣息練習、面罩唱法練習
一週心得 不論是高音之後的低音、或是未到高音前的低音 都不可偷懶，要和唱高音一樣的努力 在 聲音/歌詞 出來之前，先把氣息鋪墊好 發聲練習 氣息練習 s~ ha! 各五分 面罩唱法練習 氣息往上後（比鼻子更上面）往顏面衝 hamming 唱 「 5~3~1~ （換氣） 54321 」 像拔河般，上下前後都要集中 上：聲音的位置高於鼻子 下：保持低喉位、腹部的支持 (Appoggio) 前：氣息往顏 ...
受保護的內容: 2045年的我
- 2023.07.12
- 日常生活
受密碼保護的文章不會產生內容摘要。
matplotlib.pyplot
- 2023.07.12
- Python
繪製子圖 plt.subplots() Return Figure 和 Axes 或 Axes 的 list matplotlib.figure fig.suptitle() Add a centered super title to the figure. axex. set_title() / set_xlabel() / set_ylabel() 設定標題、X 軸名稱、Y 軸名稱 折線圖 a ...
