A free, clear and quick calculator.

Supported Languages: English, 中文

FEATURES:
★ Real time calculating, you don't need to click "equal" button.
★ Expression syntax highlighting.
★ Cut, copy and paste expression.
★ Support square root, power, Trigonometric, Exponential and Hyperbolic functions.
★ Three different skins (still keep adding) and convenient skin control panel.
★ Can custom round off to the specific decimal places (default 4th, the max decimal places up to 323th if disabled).
★ Auto recording Expression, you can go to previous or next step, or view history.
★ Be able to calculate some "informal expressions", for example:
　　normal expression　==>　informal expression
　　0.2*0.4/0.5　==>　.2*.4/.5
　　50%*60%*70%　==>　50%60%70%
　　-((0.23%)%)%　==>　-.23%%%
　　(-1.2)*(-3.4)*(-5.6)　==>　-1.2*-3.4*-5.6
　　1%*sin(50%)*cos(30%)*(20%)　==>　1%sin50%cos30%20%
　　1.1*(-2+6.5)*(-7-1.1)*5.3　==>　1.1(-2+6.5)(-7-1.1)5.3
　　8*(-4)*cos(-30.1)*tan(50.2)　==>　8*-4cos-30.1tan50.2
★ Quick expression calculating. Calculate an informal expression with 5,000,000 characters on Aspire One AOA150 netbook only takes 0.695 seconds. For more info about this test, visit: http://goo.gl/Zvfuf