eClac, a simple and practical calculating tool, it has the multiple functions such as calculator, currency exchange, discount calculate, unit exchange and so on.
*Calculator, include basic calculate and scientific calculate.
*Currency convertion, provides the user with currency rates and currency converting.
*Discount calculatiton，user can preset the default discount value, it will auto display multi-line data according to user\'s setting to make a comparision. User can also add the new line, and adjust the position in the list as needed.
*Unit convertion，Convert from among all type of units such as lengths, volumns, speed, etc.
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