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有效數位,補全A2輸待修約值,B2輸入有效數位,C2輸入公式IF(IFERROR(FIND(".",A2,1),0)=0,"",RIGHT(A2,LEN(A2)-IFERROR(FIND(".",A2,1),0)));D2輸入公式:IF(INT(LOG(A2))<-1,(IF(TRUNC(A2)=0,"",TRUNC(A2))&C2)*1,IF(TRUNC(A2)=0,"",TRUNC(A2))&C2);結果顯示公式:IF(LEN((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)))=1,(LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)),LEFT((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)),1)&"."&IF((LEN(LEFT(D2,B2))-LEN((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1))))=0,RIGHT((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)),LEN((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)))-1),LEFT(RIGHT((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)),LEN((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)))-1),LEN(RIGHT((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)),LEN((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)))-1))-1))&IF(INT(LOG(A2))-(LEN(LEFT(D2,B2))-LEN((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1))))=0,""," E "&INT(LOG(A2))-(LEN(LEFT(D2,B2))-LEN((LEFT(D2,B2)+IF(OR(LEFT(RIGHT(D2,LEN(D2)-B2),1)*1<5,AND(ISEVEN(MID(D2,B2,1)),("5"&REPT("0",LEN(RIGHT(D2,LEN(D2)-B2))-1))-RIGHT(D2,LEN(D2)-B2)=0)),0,1)))))) |