拆了一个曾经好几百块的计算器 德州仪器的 Ti-76 fr
清晰大图原地址:http://www.dlifep.com/?p=732(自己的博客)http://www.dlifep.com/wp-content/uploads/2012/06/IMG_20120606_192046-1024x768.jpg
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http://www.dlifep.com/wp-content/uploads/2012/06/IMG_20120606_192415-1024x768.jpg 以前梦寐以求。不过现在觉得这种计算器都将成为历史了。现在手机的计算器可比这个强多了。 老古董了,呵呵! 蜂巢 发表于 2012-6-6 20:01 static/image/common/back.gif
以前梦寐以求。不过现在觉得这种计算器都将成为历史了。现在手机的计算器可比这个强多了。 ...
还是计算器好用些{:lol:} 蜂巢 发表于 2012-6-6 20:01 static/image/common/back.gif
以前梦寐以求。不过现在觉得这种计算器都将成为历史了。现在手机的计算器可比这个强多了。 ...
是啊 我高中用这个可真是浪费了。。
很多很多功能都用不上
我一般用来加减乘除
高端点的就画图看数列 不过很多题目都不会坑死你 图像心中可想象
再就是写程序
那些什么矩阵计算 各种回归 运行汇编程序 == 高级功能根本用不上。。。
手机替代专业计算器恐怕还不是很方便吧。就凭那个触摸屏。。
顺便说一下 这个是99年的。。。 来个正脸图就完美了 还带闪存,,真是个高级货。 232475841 发表于 2012-6-10 15:42 static/image/common/back.gif
还带闪存,,真是个高级货。
那个是内存 {:titter:}是我孤陋寡闻,,没见过这种封装的内存啊 232475841 发表于 2012-6-10 18:23 static/image/common/back.gif
是我孤陋寡闻,,没见过这种封装的内存啊
99年的计算器 绝对是RAM 需要纽扣电池保持数据的 aheadlead 发表于 2012-6-10 18:25 static/image/common/back.gif
99年的计算器 绝对是RAM 需要纽扣电池保持数据的
S29AL004D:4M bit Flash Memory 唉,买个几十元计算器用了6年的飘过 shandian 发表于 2012-6-10 18:56 static/image/common/back.gif
S29AL004D:4M bit Flash Memory
好吧 算我愚昧
我不明白这个计算器为什么要电池保持数据... i am still using my trusty casio fx-81: bought in 1981 for about $15.
i just got a casio fx-115es plus, for $12. infinitely more feature than my fx-81. but i still love the fx-81.
best calculator i have ever used? hp 12c. have a drawer of them. impossible to break. 比如说你下次开机的时候要继续使用以前保留的数据或者算式,那RAM加电池肯定是必须的。如果每次关机前都把那些东西写到flash保存,那用不了多久就会把flash擦坏了。 here is a test to see how accurate your calculator is:
asin(acos(atan(tan(cos(sin(9)))))).
it is 9.000000007 on casio fx115es plus.
much worse on a fx-81.
in case you are curious, it is 9-1.26423e-11 on excel 2003.
millwood0 发表于 2012-9-19 08:05 static/image/common/back.gif
i am still using my trusty casio fx-81: bought in 1981 for about $15.
i just got a casio fx-115es p ...
那么老哇。。。上几张拆机图看看~~~ XA144F 发表于 2012-9-19 08:06 static/image/common/back.gif
比如说你下次开机的时候要继续使用以前保留的数据或者算式,那RAM加电池肯定是必须的。如果每次关机前都把 ...
那现在新款计算器都没有要电池保持数据的啊。。。 millwood0 发表于 2012-9-19 08:11 static/image/common/back.gif
here is a test to see how accurate your calculator is:
asin(acos(atan(tan(cos(sin(9)))))).
现在的计算器是“名义”上的关机,你按OFF键只是让cpu进入低功耗模式,数据还是保存在ram中的。比如说现在很多单片机都是这样,进入低功耗模式时,数据还是在ram中啊。 millwood0 发表于 2012-9-19 08:11 static/image/common/back.gif
here is a test to see how accurate your calculator is:
asin(acos(atan(tan(cos(sin(9)))))).
CASIO FX-82ES PLUS
9.000000007 青州那里还有很多卖的。 millwood0 发表于 2012-9-19 08:11 static/image/common/back.gif
here is a test to see how accurate your calculator is:
asin(acos(atan(tan(cos(sin(9)))))).
use WinXP's Calculater:
the answer is accurate "9"
XA144F 发表于 2012-9-19 09:28 static/image/common/back.gif
现在的计算器是“名义”上的关机,你按OFF键只是让cpu进入低功耗模式,数据还是保存在ram中的。比如说现在 ...
但是拔掉电池一段时间 计算器里的程序还在啊
我这个一拔就全没了 redroof 发表于 2012-9-19 09:40 static/image/common/back.gif
use WinXP's Calculater:
the answer is accurate "9"
calculator。。。
windows 8 也是9 millwood0 发表于 2012-9-19 08:17 static/image/common/back.gif
in case you are curious, it is 9-1.26423e-11 on excel 2003.
Excel 2010:
asin(acos(atan(tan(cos(sin(9)))))).
on fx-81: 8.991161410
on fx-260: 9.000015685
on ti-30xiis: 9.000003512
CASIO FX-82ES PLUS
9.000000007
I think fx-82es is the same as fx-115es.
Excel 2010:
that is not exactly the same sequence as on the calculators: the calculators are doing in degrees and the excel in radians.
millwood0 发表于 2012-9-19 18:26 static/image/common/back.gif
that is not exactly the same sequence as on the calculators: the calculators are doing in degrees and the excel in radians.
理论上Excel 2010多了两次转换精度损失应该更多吧。 here is a place for a lot of ti calculators (mostly graphing).
http://datamath.org/Album_Graph.htm
理论上Excel 2010多了两次转换精度损失应该更多吧。
yes. that will make the comparison with calculators more apple to apple.
millwood0 发表于 2012-9-19 19:24 static/image/common/back.gif
here is a place for a lot of ti calculators (mostly graphing).
http://datamath.org/Album_Graph.htm
请教一下
more apple to apple 是什么....
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