Volume of Solid of Revolution

💡 What can this tool do? (這工具能幫我做什麼？)

Calculating the volume of a solid of revolution is a core application of definite integrals. This tool provides a 2D cross-section and 3D Disk/Washer Method visualization canvas of solids rotated about the x-axis. Supports 360-degree mouse drag rotation and dynamically renders the corresponding definite integral formulas and calculated volumes.
💡 求旋轉體體積是定積分的核心應用。本工具提供圍繞 x 軸 旋轉體的二維剖面與三維圓盤法（Disk/Washer Method）可視化畫布。支援滑鼠拖曳 360 度旋轉視角，並即時渲染定積分公式與體積數值，幫您建立幾何空間直覺！