log 1 即10^x = 1 之解.,log1=0. log2=0.3010. log3=0.4771. log4=2*log2=0.6020. log5=log10-log2=0.6990. log6=log2+log3=0.7871. log7=0.8451. log8=3*log2=0.9030.
確定！ 回上一頁
