Python利用LaTeX和MathML实现在Word中插入数学公式

pip install Spire.Doc.Free

from spire.doc import *
from spire.doc.common import *

def insert_latex_equations():
    # 创建新文档
    doc = Document()
    section = doc.AddSection()
    
    # 添加标题段落
    title_para = section.AddParagraph()
    title_para.AppendText("从 LaTeX 插入的数学公式")
    title_para.Format.HorizontalAlignment = HorizontalAlignment.Left
    
    # 定义 LaTeX 公式列表
    latex_equations = [
        r"x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}",           # 一元二次方程求根公式
        r"E = mc^2",                                        # 质能方程
        r"\sum_{i=1}^{n} i = \frac{n(n+1)}{2}",             # 自然数求和
        r"\int_{-\infty}^{\infty} e^{-x^2} dx = \sqrt{\pi}" # 高斯积分
    ]
    
    # 逐个插入公式
    for latex in latex_equations:
        # 创建 OfficeMath 对象并从 LaTeX 转换
        office_math = OfficeMath(doc)
        office_math.FromLatexMathCode(latex)
        # 将公式添加到新段落
        para = section.AddParagraph()
        para.Items.Add(office_math)
        # 添加空行作为分隔
        section.AddParagraph()
    
    # 保存文档
    doc.SaveToFile("latex_equations.docx", FileFormat.Docx2019)
    doc.Close()
    print("LaTeX 公式插入成功！")

if __name__ == "__main__":
    insert_latex_equations()

from spire.doc import *
from spire.doc.common import *

def insert_mathml_equations():
    doc = Document()
    section = doc.AddSection()
    
    # 添加标题
    title_para = section.AddParagraph()
    title_para.AppendText("从 MathML 插入的数学公式")
    title_para.Format.HorizontalAlignment = HorizontalAlignment.Left
    
    # 定义 MathML 公式列表
    mathml_equations = [
        # 欧拉公式 e^{iπ} + 1 = 0
        r'<math xmlns="http://www.w3.org/1998/Math/MathML">'
        r'<msup><mi>e</mi><mrow><mi>i</mi><mi>π</mi></mrow></msup>'
        r'<mo>+</mo><mn>1</mn><mo>=</mo><mn>0</mn>'
        r'</math>',
        # 勾股定理 a² + b² = c²
        r'<math xmlns="http://www.w3.org/1998/Math/MathML">'
        r'<msup><mi>a</mi><mn>2</mn></msup>'
        r'<mo>+</mo>'
        r'<msup><mi>b</mi><mn>2</mn></msup>'
        r'<mo>=</mo>'
        r'<msup><mi>c</mi><mn>2</mn></msup>'
        r'</math>'
    ]
    
    # 逐个插入 MathML 公式
    for mathml in mathml_equations:
        office_math = OfficeMath(doc)
        office_math.FromMathMLCode(mathml)
        para = section.AddParagraph()
        para.Items.Add(office_math)
        section.AddParagraph()
    
    doc.SaveToFile("mathml_equations.docx", FileFormat.Docx2019)
    doc.Close()
    print("MathML 公式插入成功！")

if __name__ == "__main__":
    insert_mathml_equations()

para = section.AddParagraph()
para.Format.HorizontalAlignment = HorizontalAlignment.Center  # 居中对齐
# para.Format.HorizontalAlignment = HorizontalAlignment.Left    # 左对齐
# para.Format.HorizontalAlignment = HorizontalAlignment.Right   # 右对齐

def insert_mixed_equations():
    doc = Document()
    section = doc.AddSection()
    
    # 添加标题
    title_para = section.AddParagraph()
    title_para.AppendText("LaTeX 与 MathML 混合公式示例")
    
    # 插入 LaTeX 公式
    latex_math = OfficeMath(doc)
    latex_math.FromLatexMathCode(r"\int_{0}^{1} x^2 dx = \frac{1}{3}")
    latex_para = section.AddParagraph()
    latex_para.Items.Add(latex_math)
    
    # 插入 MathML 公式（牛顿第二定律 F = ma）
    mathml_math = OfficeMath(doc)
    mathml_math.FromMathMLCode(
        r'<math xmlns="http://www.w3.org/1998/Math/MathML">'
        r'<mi>F</mi><mo>=</mo><mi>m</mi><mi>a</mi>'
        r'</math>'
    )
    mathml_para = section.AddParagraph()
    mathml_para.Items.Add(mathml_math)
    
    doc.SaveToFile("mixed_equations.docx", FileFormat.Docx2019)
    doc.Close()