Calculator! Voice & Effect

√ Alien, Piano, Animals, Robot, Chinese, English. Up to 39 amazing audio effect.
√ Touch and edit.
√ Great math practices.
√ Most user friendly Calculator.
√ Tip Calculator.
√ Scientific Calculator.
√ Statistic Calculator.

Check other amazing features:


- add (+)、minus (-)、multiply (*)、divide (/).
- square root (sqrt).

- trigonometric functions: sin、cos、tan, sin^-1、cos^-1、tan^-1.
- hyperbolic functions: sinh、cosh、tanh、sinh^-1、cosh^-1、tanh^-1.
- advanced factorial function supports real number: n!.
- log、ln、log2、x^2、x^3、x^-1、10^x、2^x、e^x、x^y、yroot.

- (、).




==== Special Bonus on iPhone/iPod Touch =====

- Tip rate, Split, Tax, Group.

=========iPad SPECIAL Feature ==========


- Multiplication
* 1~9, 1~20 Table
* Practices

- Addition practice
* Max 10
* 1~9
* 1~20
* 1~99

- Statics function
* Data array: sort, sum, mean, standard deviation, variance.
* Possion
* NegativeBinomial
* Binomial.
* Hypergeometric

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