一款功能强大的计算器，除了能实现普通计算器的功能外，同时把计算过程以文本的方式展现出来，这些文本可以再次进行编辑，非常方便。 

Calculate. Comment. Correct. 
CalcTape makes the arithmetic process visible - you can do multiple calculations and subsequently correct or change all numbers and operations. 
CalcTape is a revolutionary new kind of pocket calculator. With CalcTape, also extensive calculations remain clearly

structured

: 

- Input a long list of values to be calculated and never lose the overview - just like with an adding machine with a paper tape. 
- You can use intermediate results to structure and to check your results. 
- If you should later change individual mathematical expressions, then the complete calculation is automatically updated. 
- Intuitive percentage calculations. 
- Input comments on single items and results and add notes wherever you want. 
CalcTape Paper Tape Calculator is free and your ideal companion for office and personal calculations - everyday. 
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If you find any problem feel free to contact us. You can help us improving CalcTape Smart Calculator by stating your Android version and smartphone model.