import matplotlib.pyplot as plt
import numpy as np

# 創(chuàng)建示例數(shù)據(jù)
x = np.linspace(0, 2 * np.pi, 100)
y = np.sin(x)

fig, ax = plt.subplots(figsize=(8, 5))
ax.plot(x, y, linewidth=2)

# 使用fontdict設(shè)置字體屬性
ax.set_xlabel('Time (s)', 
              fontdict={
                  'family': 'Times New Roman',  # 字體名稱
                  'size': 16,                   # 字體大小
                  'weight': 'bold',             # 字體粗細(xì)
                  'style': 'italic',            # 字體樣式
                  'color': 'darkblue'           # 字體顏色
              })

ax.set_ylabel('Amplitude', 
              fontdict={
                  'family': 'Arial',
                  'size': 14,
                  'weight': 'normal',
                  'color': 'darkred'
              })

ax.set_title('Sine Wave: $y = \\sin(x)$', fontsize=18, fontweight='bold')
plt.tight_layout()
plt.show()

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0, 10, 100)
y = np.exp(-x/5) * np.cos(2*x)

fig, ax = plt.subplots(figsize=(8, 5))
ax.plot(x, y, 'r-', linewidth=2)

# 使用關(guān)鍵字參數(shù)設(shè)置字體
ax.set_xlabel('Time (seconds)', 
              fontsize=14,
              fontweight='bold',
              fontstyle='normal',
              fontfamily='DejaVu Sans',
              color='navy')

ax.set_ylabel('Signal Strength', 
              fontsize=14,
              fontweight='semibold',
              fontfamily='Helvetica',
              color='darkgreen')

ax.set_title('Damped Oscillation', 
             fontsize=16,
             fontweight='bold',
             fontfamily='Times New Roman')

plt.grid(True, alpha=0.3)
plt.tight_layout()
plt.show()

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(-5, 5, 200)
y = np.exp(-x**2/2) / np.sqrt(2*np.pi)

fig, ax = plt.subplots(figsize=(8, 5))
ax.plot(x, y, 'b-', linewidth=2, alpha=0.7)

# 獲取 Text 對象
xlabel = ax.set_xlabel('$x$ (Input Variable)')
ylabel = ax.set_ylabel('$f(x)$', rotation=0)

# 通過 Text 對象的方法設(shè)置屬性
xlabel.set_fontsize(15)
xlabel.set_fontweight('bold')
xlabel.set_fontfamily('Times New Roman')
xlabel.set_color('darkblue')
xlabel.set_style('italic')

ylabel.set_fontsize(15)
ylabel.set_fontweight('bold')
ylabel.set_fontfamily('Times New Roman')
ylabel.set_color('darkred')
ylabel.set_verticalalignment('center')
ylabel.set_position((0, 0.5))  # 調(diào)整標(biāo)簽位置

ax.set_title('Normal Distribution: $f(x) = \\frac{1}{\\sqrt{2\\pi}} e^{-x^2/2}$',
             fontsize=16, fontweight='bold')

plt.grid(True, alpha=0.2, linestyle='--')
plt.tight_layout()
plt.show()

import matplotlib.pyplot as plt
import matplotlib
import numpy as np

# 配置全局設(shè)置
matplotlib.rcParams.update({
    'axes.labelsize': 16,
    'axes.labelweight': 'bold',
    'axes.labelcolor': 'black',
    'axes.titlecolor': 'darkblue',
    'axes.titlesize': 18,
    'axes.titleweight': 'bold',
    'font.family': 'sans-serif',
    'font.sans-serif': ['Arial', 'DejaVu Sans', 'Helvetica']
})

# 創(chuàng)建子圖
fig, axes = plt.subplots(2, 2, figsize=(12, 10))

x = np.linspace(0, 4*np.pi, 200)

# 繪制不同的三角函數(shù)
functions = [('sin', np.sin), ('cos', np.cos), 
             ('tan', np.tan), ('sinc', lambda x: np.sin(x)/x)]

for ax, (name, func) in zip(axes.flat, functions):
    y = func(x)
    ax.plot(x, y, linewidth=2)
    ax.set_xlabel('$x$ (radians)')
    ax.set_ylabel(f'${name}(x)$')
    ax.set_title(f'${name}(x)$ Function')
    ax.grid(True, alpha=0.3)
    
    # 對正切函數(shù)設(shè)置顯示范圍，避免極端值
    if name == 'tan':
        ax.set_ylim(-5, 5)

plt.tight_layout()
plt.show()

# 重置為默認(rèn)設(shè)置
matplotlib.rcParams.update(matplotlib.rcParamsDefault)

import matplotlib.pyplot as plt
import numpy as np

# 解決負(fù)號顯示問題的基本配置
plt.rcParams['font.sans-serif'] = ['Arial', 'DejaVu Sans', 'Helvetica']
plt.rcParams['axes.unicode_minus'] = False  # 關(guān)鍵設(shè)置

# 創(chuàng)建包含負(fù)值的數(shù)據(jù)
x = np.linspace(-2*np.pi, 2*np.pi, 300)
y1 = np.sin(x)
y2 = np.cos(x)

fig, (ax1, ax2) = plt.subplots(1, 2, figsize=(12, 5))

# 第一個子圖：正弦函數(shù)
ax1.plot(x, y1, 'b-', linewidth=2)
ax1.set_xlabel('Angle (radians)')
ax1.set_ylabel('$\\sin(\\theta)$')
ax1.set_title('Sine Function with Negative Domain')
ax1.grid(True, alpha=0.3)
ax1.axhline(y=0, color='black', linewidth=0.5, linestyle='-')
ax1.axvline(x=0, color='black', linewidth=0.5, linestyle='-')

# 第二個子圖：余弦函數(shù)
ax2.plot(x, y2, 'r-', linewidth=2)
ax2.set_xlabel('Angle (radians)')
ax2.set_ylabel('$\\cos(\\theta)$')
ax2.set_title('Cosine Function with Negative Domain')
ax2.grid(True, alpha=0.3)
ax2.axhline(y=0, color='black', linewidth=0.5, linestyle='-')
ax2.axvline(x=0, color='black', linewidth=0.5, linestyle='-')

plt.tight_layout()
plt.show()

import matplotlib.pyplot as plt
import numpy as np
from matplotlib.ticker import FuncFormatter

# 配置以正確顯示負(fù)號
plt.rcParams['axes.unicode_minus'] = False
plt.rcParams['font.size'] = 12

# 創(chuàng)建包含較大負(fù)值的數(shù)據(jù)
x = np.logspace(-3, 3, 200)  # 從 $10^{-3}$ 到 $10^{3}$
y = -np.exp(-x) * np.sin(10*x)

fig, ax = plt.subplots(figsize=(10, 6))
ax.semilogx(x, y, linewidth=2, color='purple')

# 使用科學(xué)記數(shù)法格式化刻度標(biāo)簽
formatter = FuncFormatter(lambda val, pos: f'{val:.1e}')
ax.xaxis.set_major_formatter(formatter)
ax.yaxis.set_major_formatter(formatter)

# 自定義刻度參數(shù)
ax.tick_params(axis='both', which='major', labelsize=11)
ax.tick_params(axis='both', which='minor', labelsize=9)

ax.set_xlabel('Time (s)', fontsize=14, fontweight='bold')
ax.set_ylabel('Amplitude (V)', fontsize=14, fontweight='bold')
ax.set_title('Exponential Decay with Oscillation: $y = -e^{-x}\\sin(10x)$', 
             fontsize=16, fontweight='bold')

ax.grid(True, alpha=0.3, which='both', linestyle='--')

# 添加包含負(fù)值的文本標(biāo)注
ax.text(0.1, -0.7, 'Minimum Value: $-0.5\\times10^{0}$', 
        fontsize=12, bbox=dict(boxstyle='round', facecolor='yellow', alpha=0.5))

plt.tight_layout()
plt.show()

import matplotlib.pyplot as plt
import numpy as np

# 設(shè)置中文字體和負(fù)號顯示
plt.rcParams['font.sans-serif'] = ['SimHei', 'Microsoft YaHei', 'DejaVu Sans']
plt.rcParams['axes.unicode_minus'] = False

x = np.linspace(0, 10, 100)
y = np.sin(x)

fig, ax = plt.subplots(figsize=(8, 6))
ax.plot(x, y, linewidth=2)

# 設(shè)置刻度字體
ax.tick_params(axis='both',           # 同時設(shè)置 x 和 y 軸
               labelsize=12,          # 刻度標(biāo)簽大小
               labelcolor='darkblue', # 刻度標(biāo)簽顏色
               rotation=0)           # 刻度標(biāo)簽旋轉(zhuǎn)角度

# 或者分別設(shè)置 x 軸和 y 軸
ax.tick_params(axis='x', labelsize=14, labelcolor='red', rotation=45)
ax.tick_params(axis='y', labelsize=12, labelcolor='green')

ax.set_xlabel('X軸標(biāo)題', fontsize=14)
ax.set_ylabel('Y軸標(biāo)題', fontsize=14)
ax.set_title('刻度字體設(shè)置示例', fontsize=16)
plt.tight_layout()
plt.show()

import matplotlib.pyplot as plt
import numpy as np

# 創(chuàng)建數(shù)據(jù)
x = np.linspace(0, 2*np.pi, 100)
y = np.sin(x)

fig, ax = plt.subplots(figsize=(8, 6))
ax.plot(x, y, 'b-', linewidth=2)

# 設(shè)置自定義刻度位置
x_ticks = [0, np.pi/2, np.pi, 3*np.pi/2, 2*np.pi]
x_tick_labels = ['0', r'$\frac{\pi}{2}$', r'$\pi$', r'$\frac{3\pi}{2}$', r'$2\pi$']

y_ticks = [-1, -0.5, 0, 0.5, 1]

# 設(shè)置刻度位置和標(biāo)簽
ax.set_xticks(x_ticks)
ax.set_xticklabels(x_tick_labels, 
                   fontsize=14,
                   fontfamily='Times New Roman',
                   fontweight='bold',
                   color='darkblue')

ax.set_yticks(y_ticks)
ax.set_yticklabels([f'{tick:.1f}' for tick in y_ticks],
                   fontsize=12,
                   fontfamily='Arial',
                   color='darkred')

# 設(shè)置刻度線樣式
ax.tick_params(axis='both',
               which='major',
               length=10,
               width=2,
               direction='inout')

# 添加次刻度
from matplotlib.ticker import AutoMinorLocator
ax.xaxis.set_minor_locator(AutoMinorLocator(2))
ax.yaxis.set_minor_locator(AutoMinorLocator(2))
ax.tick_params(axis='both', which='minor', length=5, width=1)

ax.set_xlabel('Angle (radians)', fontsize=14, fontweight='bold')
ax.set_ylabel('sin(angle)', fontsize=14, fontweight='bold')
ax.set_title('Trigonometric Function Curve', fontsize=16, fontweight='bold')
ax.grid(True, alpha=0.3, which='both')

plt.tight_layout()
plt.show()

import matplotlib.pyplot as plt
import numpy as np
from matplotlib.font_manager import FontProperties

fig, ax = plt.subplots(figsize=(8, 6))
x = np.arange(0, 10, 1)
y = np.random.randn(10)

ax.bar(x, y, color='skyblue', edgecolor='navy')

# 創(chuàng)建字體屬性對象
tick_font = FontProperties(
    family='Microsoft YaHei',
    size=12,
    weight='bold',
    style='italic'
)

# 設(shè)置 x 軸刻度字體
for label in ax.get_xticklabels():
    label.set_fontproperties(tick_font)
    label.set_color('darkblue')
    label.set_rotation(45)
    label.set_horizontalalignment('right')

# 設(shè)置 y 軸刻度字體
for label in ax.get_yticklabels():
    label.set_fontproperties(tick_font)
    label.set_color('darkred')
    
ax.set_xlabel('Category', fontsize=14, fontweight='bold')
ax.set_ylabel('Value', fontsize=14, fontweight='bold')
ax.set_title('Bar Chart with Custom Tick Labels', fontsize=16, fontweight='bold')
plt.tight_layout()
plt.show()

import matplotlib.pyplot as plt
import matplotlib
import numpy as np

# 使用 update 方法全局設(shè)置
matplotlib.rcParams.update({
    'xtick.labelsize': 12,      # x 軸刻度字體大小
    'ytick.labelsize': 12,      # y 軸刻度字體大小
    'xtick.color': 'blue',      # x 軸刻度顏色
    'ytick.color': 'red',       # y 軸刻度顏色
    'xtick.direction': 'in',    # x 軸刻度方向
    'ytick.direction': 'in',    # y 軸刻度方向
    'xtick.major.size': 8,      # x 軸主刻度長度
    'ytick.major.size': 8,      # y 軸主刻度長度
    'xtick.minor.size': 4,      # x 軸次刻度長度
    'ytick.minor.size': 4,      # y 軸次刻度長度
    'font.family': 'Arial',     # 字體族
    'axes.unicode_minus': False
})

# 創(chuàng)建圖表
fig, axes = plt.subplots(2, 2, figsize=(12, 10))
x = np.linspace(0, 2*np.pi, 100)

# 繪制不同的三角函數(shù)
functions = [np.sin, np.cos, np.tan, lambda x: np.sin(x)*np.cos(x)]
titles = ['Sine', 'Cosine', 'Tangent', 'Sine × Cosine']

for ax, func, title in zip(axes.flat, functions, titles):
    y = func(x)
    ax.plot(x, y, linewidth=2)
    ax.set_xlabel('x')
    ax.set_ylabel('f(x)')
    ax.set_title(title)
    ax.grid(True, alpha=0.3)
    
    # 對正切函數(shù)設(shè)置顯示范圍
    if title == 'Tangent':
        ax.set_ylim(-5, 5)

plt.tight_layout()
plt.show()

# 重置為默認(rèn)設(shè)置
matplotlib.rcParams.update(matplotlib.rcParamsDefault)

import matplotlib.pyplot as plt
import numpy as np
from matplotlib.ticker import MultipleLocator, AutoMinorLocator

# 全局設(shè)置
plt.rcParams['font.size'] = 12
plt.rcParams['axes.unicode_minus'] = False
plt.rcParams['font.family'] = 'Arial'

# 創(chuàng)建包含負(fù)值的數(shù)據(jù)
x = np.linspace(-10, 10, 400)
y1 = np.sin(x)
y2 = np.cos(x)
y3 = np.exp(-x**2/10) * np.sin(2*x)

# 創(chuàng)建圖形和子圖
fig, axes = plt.subplots(1, 3, figsize=(18, 6))

# 第一個子圖：正弦函數(shù)
axes[0].plot(x, y1, 'b-', linewidth=2)
axes[0].set_xlabel('x (radians)', fontsize=14, fontweight='bold', fontfamily='Times New Roman')
axes[0].set_ylabel('sin(x)', fontsize=14, fontweight='bold', fontfamily='Times New Roman')
axes[0].set_title('Sine Function: $y = \\sin(x)$', fontsize=16, fontweight='bold')

# 設(shè)置刻度
axes[0].tick_params(axis='both', which='major', labelsize=12, length=8, width=1.5)
axes[0].tick_params(axis='both', which='minor', length=4)
axes[0].xaxis.set_minor_locator(AutoMinorLocator(2))
axes[0].yaxis.set_minor_locator(AutoMinorLocator(2))
axes[0].grid(True, which='both', alpha=0.2, linestyle='--')

# 第二個子圖：余弦函數(shù)
axes[1].plot(x, y2, 'r-', linewidth=2)
axes[1].set_xlabel('x (radians)', fontsize=14, fontweight='bold')
axes[1].set_ylabel('cos(x)', fontsize=14, fontweight='bold')
axes[1].set_title('Cosine Function: $y = \\cos(x)$', fontsize=16, fontweight='bold')

# 設(shè)置刻度
axes[1].tick_params(axis='both', which='major', labelsize=12, length=8, width=1.5, colors='darkred')
axes[1].tick_params(axis='both', which='minor', length=4)
axes[1].xaxis.set_minor_locator(AutoMinorLocator(2))
axes[1].yaxis.set_minor_locator(AutoMinorLocator(2))
axes[1].grid(True, which='both', alpha=0.2, linestyle='--')

# 第三個子圖：阻尼振蕩
axes[2].plot(x, y3, 'g-', linewidth=2)
axes[2].set_xlabel('Time (s)', fontsize=14, fontweight='bold')
axes[2].set_ylabel('Amplitude', fontsize=14, fontweight='bold')
axes[2].set_title('Damped Oscillation: $y = e^{-x^2/10} \\cdot \\sin(2x)$', fontsize=16, fontweight='bold')

# 設(shè)置刻度
axes[2].tick_params(axis='both', which='major', labelsize=12, length=8, width=1.5, rotation=45)
axes[2].tick_params(axis='both', which='minor', length=4)
axes[2].xaxis.set_minor_locator(AutoMinorLocator(2))
axes[2].yaxis.set_minor_locator(AutoMinorLocator(2))
axes[2].grid(True, which='both', alpha=0.2, linestyle='--')

plt.tight_layout()
plt.show()