S = B ( T ) ∗ λ − β {\displaystyle S=B(T)*{\lambda }^{-\beta }} beta是发射率系数,~2 解析失败 (带SVG或PNG备选的MathML(建议用于现代的浏览器和辅助工具):从服务器“https://wikimedia.org/api/rest_v1/”返回无效的响应(“Math extension cannot connect to Restbase.”):): {\displaystyle E=mc^2}