# New features in DaCalc v1.7.1.0

The new version of DaCalc 1.7.1.0 comes with several new features.

- Automatically use the last result as the first operand if an operator is the first input in normal mode. For example, after calc an expression, 2+3, we get 5 as the result. Now the expression box is empty and user press a + button directly, the last result 5 will be added as the first operand and the expression looks like: 5+. If there is no last result, 0.0 will be added.
- Minus sign is supported. Now user can press - to add a minus sign before an operand. The following expression is supported now: -5+3

In order to add the last result for -, user need to long press the - button. - The default n-th of a root operator is a Square root. In the earlier version, the n-th of a root operator can not be omitted. It must be written as x√y. Now if the n-th (x) is absent, the operator will be recognized as a Square root operator. It is easier for some common usage.

It can be downloaded from Android Market now.