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schoettler CalcTape is a revolutionary new kind of pocket calculator. With CalcTape, also extensive calculations remain clearly structured. CalcTape makes the arithmetic process visible - you can generate interim results and subsequently correct or change all numbers and operations. schoettler CalcTape for Windows - details: - Enter many calculation terms in one turn and still keep an overview - like on an adding machine / desktop calculator. - Change any term afterwards and CalcTape will refresh the whole calculation automatically. - Use interim results to check and structure your calculation. - Comment your calculation terms, to give sense and context to it. - Save your calculations into files. Open the files later and you can change the calculations. CalcTape will refresh the whole calculation automatically again and again. - Use your existing CalcTape files as templates. Do similar calculations and play different scenarios. - Use the programmable buttons e.g. for fast TAX calculations. - CalcTape masters the four basic arithmetical operations, exponentials, and percentage calculations. - CalcTape for Windows requires Windows Vista, Windows 7, Windows 8 or Windows 10.