使用MathJax引擎
输入:$$x=frac{-bpmsqrt{b^2-4ac}}{2a}$$
显示:$$x=frac{-bpmsqrt{b^2-4ac}}{2a}$$
参考资料:
1.MathJax basic tutorial and quick reference
输入:$$x=frac{-bpmsqrt{b^2-4ac}}{2a}$$
显示:$$x=frac{-bpmsqrt{b^2-4ac}}{2a}$$
1.MathJax basic tutorial and quick reference