| <!-- | |
| @WIN-ALLOW:inner_html* | |
| @MAC-ALLOW:AXRole* | |
| @MAC-ALLOW:AXSubrole* | |
| --> | |
| <!DOCTYPE html> | |
| <html> | |
| <body> | |
| <math xmlns="http://www.w3.org/1998/Math/MathML"> | |
| <mrow> | |
| <msup><mi>a</mi><mn>2</mn></msup> | |
| <mo>+</mo> | |
| <msup><mi>b</mi><mn>2</mn></msup> | |
| </mrow> | |
| </math> | |
| </body> | |
| </html> |