Diagrams with Mermaid

Graph

    graph TD
        A((Biến A)) --> B{Điều kiện}
        B -->|Đúng| C[Thực thi 1]
        B -->|Sai| D[Thực thi 2]
        C --> E((Kết thúc))
        D --> E

Flowchart

    graph TD
        A[Bắt đầu] --> B[Bước 1]
        B --> C[Bước 2]
        C --> D[Kết thúc]

Journey

    journey
    title My working day
    section Go to work
        Make tea: 5: Me
        Go upstairs: 3: Me
        Do work: 1: Me, Cat
    section Go home
        Go downstairs: 5: Me
        Sit down: 5: Me

$2^2=4$