UNIT:サンプル@2026-08-15 7 別行立て数式 equation環境 exp(A)=∑k=0∞1k!Ak=I+A+12A2+16A3+⋯.\exp(A)=\sum_{k=0}^{\infty}\frac{1}{k!}A^{k}=I+A+\frac{1}{2}A^{2}+\frac{1}{6}A% ^{3}+\dotsb. (1) equation*環境 exp(A)=∑k=0∞1k!Ak=I+A+12A2+16A3+⋯.\exp(A)=\sum_{k=0}^{\infty}\frac{1}{k!}A^{k}=I+A+\frac{1}{2}A^{2}+\frac{1}{6}A% ^{3}+\dotsb. \[ ... \] exp(A)=∑k=0∞1k!Ak=I+A+12A2+16A3+⋯.\exp(A)=\sum_{k=0}^{\infty}\frac{1}{k!}A^{k}=I+A+\frac{1}{2}A^{2}+\frac{1}{6}A% ^{3}+\dotsb. align環境 exp(A)\displaystyle\exp(A) =∑k=0∞1k!Ak\displaystyle=\sum_{k=0}^{\infty}\frac{1}{k!}A^{k} (2) =I+A+12A2+16A3+⋯.\displaystyle=I+A+\frac{1}{2}A^{2}+\frac{1}{6}A^{3}+\dotsb. (3) align*環境 exp(A)\displaystyle\exp(A) =∑k=0∞1k!Ak\displaystyle=\sum_{k=0}^{\infty}\frac{1}{k!}A^{k} =I+A+12A2+16A3+⋯.\displaystyle=I+A+\frac{1}{2}A^{2}+\frac{1}{6}A^{3}+\dotsb.