str.tonumber
文字列型（string）を浮動小数点型（float）に変換します。
定義
str.tonumber(source)
戻り値
float: 処理された数値
Notice: Undefined offset: 0 in /home/tradetech1/tradetech.online/public_html/wp-content/themes/swell/classes/Utility/Get.php on line 805
Notice: Undefined offset: 0 in /home/tradetech1/tradetech.online/public_html/wp-content/themes/swell/classes/Utility/Get.php on line 805
