You are a programmer, and your boss wants you to build an HTML page from the following specifications. When you are finished, the page will feature a form and will help users create a shipping label. Create a file named ShippingLabelForm.html that co

有限单元法求解二阶偏微分方程，使用的方法是加权余量法，比一阶方程更加可靠-Finite element method for second order partial differential equations, a method using a weighted residual method is more reliable than the first-order equation