数学常数表

常数表

$e = \tt{2.718281828}$

$\pi = \tt{3.141592654}$

$\ln \pi = \tt{1.1447}$

$\sqrt{\pi} = \tt{1.7725}$

自然对数表	$N$	$\ln N$
$\ln2 = \tt{0.69}$	$\tt{2}$	$\tt{0.6931}$
$\ln3 = \tt{1.10}$	$\tt{3}$	$\tt{1.0986}$
$\ln5 = \tt{1.61}$	$\tt{5}$	$\tt{1.6094}$
$\ln7 = \tt{1.95}$	$\tt{7}$	$\tt{1.9459}$
$\ln11 = \tt{2.40}$	$\tt{11}$	$\tt{2.3979}$
$\ln13 = \tt{2.56}$	$\tt{13}$	$\tt{2.5649}$
$\ln17 = \tt{2.83}$	$\tt{17}$	$\tt{2.8332}$
$\ln19 = \tt{2.94}$	$\tt{19}$	$\tt{2.9444}$
$\ln23 = \tt{3.14}$	$\tt{23}$	$\tt{3.1355}$
$\ln29 = \tt{3.37}$	$\tt{29}$	$\tt{3.3673}$
$\ln31 = \tt{3.43}$	$\tt{31}$	$\tt{3.4340}$

$\exp$ 表	$N$	$\exp N$
$\exp{2} = \tt{7.39}$	$\tt{2}$	$\tt{7.3891}$
$\exp{3} = \tt{20.09}$	$\tt{3}$	$\tt{20.0855}$
$\exp{5} = \tt{148.41}$	$\tt{5}$	$\tt{148.4132}$
$\exp{7} = \tt{1096.63}$	$\tt{7}$	$\tt{}$$\tt{1096.6332}$
$\exp{11} = \tt{59874.14}$	$\tt{11}$	$\tt{59874.1417}$
$\exp{13} = \tt{442413.39}$	$\tt{13}$	$\tt{442413.3920}$