Office calculator with a virtual tape for Android,
fixed point or floating point mode,
various rounding modes, easy percent and tax calculation.
This is a calculator optimized for office tasks.
* Calculator with virtual tape
You can switch between calculator view and and tape view to have a full screen view of the tape.
Just tap on the tape to switch between views.
The tape of the calculator can have up to 1000 lines.
* Calculator support corrections on the tape
You can change values on the virtual tape to make corrections.
For corrections go to the context menu of the tape line with a long press.
* Calculator has percent calculation to add or subtract percent values.
The tape will display the percentage and the resulting value.
* Calculator has tax buttons (TX+, TX-) to add or sub tract tax (sales tax, VAT)
This makes it very easy to calculate tax amounts with the calculator.
The tape will display the tax rate and the resulting value.
* Calculator allows annotations on the tape
You can write a comment to a tape line.
* Calculator with fixed point arithmetic or floating point.
Fixed point arithmetic has 20 digits and 0 - 4 decimal places.
The floating point arithmetic has 64 bits (IEEE double precision).
By default, the calculator works with fixed point arithmetic and 2 decimal places as needed for most calculations with amounts.
* Calculator supports three rounding modes: up, down or 5/4.
This is the ad-sponsored variant of Office Calculator,
a Pro variant of Office Calculator without ads is also available.
办公计算器，虚拟磁带为Android，
定点或浮点模式，
不同的舍入模式，便于％和税额计算。
这对于办公任务而优化的计算器。
*计算器虚拟磁带
您可以计算器视图，和磁带观点有磁带的全屏视图之间切换。
只需轻按在磁带上的视图之间切换。
计算器的磁带最多可以有1000行。
*在磁带上的计算器支持修正
您可以在虚拟磁带更改值进行更正。
更正一起去参加一个长按磁带行的上下文菜单。
*拥有计算器计算百分比增加或减少的百分比值。
磁带将显示比例，将所得的值。
*计算器有税务按钮（TX +，TX-）来添加或子道税（营业税，增值税）
这使得它非常容易计算税额的计算器。
磁带将显示税率和由此产生的价值。
*计算器允许标注在磁带上
你可以写一个评论，以磁带线。
*计算器定点算术运算或浮点。
定点算术的20位数，0 - 4位小数。
浮点运算有64位（IEEE双精度）。
默认情况下，该计算器可与定点运算和2为最需要的计算量与小数位。
*计算器支持三种舍入模式：向上，向下或5/4。
这是办公室计算器的广告赞助变种，
办公计算器的临变种没有广告也可以。