Calculator@ is simple but powerful
Distinguishing feature
：
1.Modify the formula in any of the items
2.Set each formula items multiplier
3.Display formula results like the following
+ 13×2
+ 6
- 2
---------------------------
30
4.Email your formula results
5.Share your formula results by Facebook 、SNS 、Twitter
6.Exchange formula results Between devices via Bluetooth
7.Save your formula results