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朗仔 2007-10-07 13:43

significant figures一問

有冇人識咩significant figures呀
我唔識分zero幾時係一個有效既no

BBF 2007-10-07 13:47
引用第0樓likenike於2007-10-07 13:43發表的“significant figures一問”:
有冇人識咩significant figures呀
我唔識分zero幾時係一個有效既no


math?

個數顯示有幾多個數字咪就係幾多個sig. fig. 囉

Ajax 2007-10-07 13:56
Example..


1.~~~35000...has 5 sig fig
2.~~~0.3507...has four sig fig
3.~~~0.00561...has three sig fig

朗仔 2007-10-07 14:05
引用第2樓Ajax於2007-10-07 13:56發表的“”:
Example..
1.~~~35000...has 5 sig fig
2.~~~0.3507...has four sig fig
.......


咁920067同71003呢?

Ajax 2007-10-07 14:08
引用第3樓likenike於2007-10-07 14:05發表的“”:
咁920067同71003呢?

the zero is counted when they are between another numbers

朗仔 2007-10-07 14:12
引用第4樓Ajax於2007-10-07 14:08發表的“”:
the zero is counted when they are between another numbers


good
main point
我明了
thx ajax

朗仔 2007-10-07 14:16
咁如果90.108呢??
都係5個??

how about 388 000 (correst to the nearrest hundred) 同埋
4 070 000 (correst to the nearest ten)

Ajax 2007-10-07 14:19
引用第6樓likenike於2007-10-07 14:16發表的“”:
咁如果90.108呢??
都係5個??
how about 388 000 (correst to the nearrest hundred) 同埋
4 070 000 (correst to the nearest ten)

90.108 is 5 sig fig

388000 can be 6 sig fig and 3 sig fig...
teacher say two answers are acceptable..
4070000 also..

朗仔 2007-10-07 14:20
引用第7樓Ajax於2007-10-07 14:19發表的“”:
90.108 is 5 sig fig
388000 can be 6 sig fig and 3 sig fig...
teacher say two answers are acceptable..
.......


IC
thx


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