浮動小数点表記法を使用するためメモ。
小数点を左に5回シフト
C/C++表記
1.2e-5
意味
1.2*10^(-5)
値
0.000012
小数点を右に5回シフト
C/C++表記
1.2e+5
意味
1.2*10^5
値
120000
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