Now "Calculator S " was renamed as "Super Calculator with history record"

***** Ranked as Top 10 Utilities for iPad *****

Calculator S for iPad , S means :
1. Symbolic -- Support brackets , X, Y, Z three variables , ^(Exponentiation ), # (root) , and follow BEDMAS rule .
2. Super -- Full function supported , Super powerful
3. Smart -- Smart design , easily use functions and variables
4. Sketch board -- Very powerful sketch board , can draw function curve !

Those three S make the best Scientific Calculator for iPad !

Best Calculator ever with expression automatically calculated !
1. Get result while typing ! can calculate complex expression with priority of operators , for example
3+3*2 = 9 , 3+3*2^2=15
2. Can use x, y ,z as variables !
3. Support many functions , such as sin ,cos , lg , ln , rad , deg , fact(factorial) .
4. Easiest way to use brackets !
5. Exchange to HEX , OCT .
6. Many converters , such as mile to km , km to mile , pound to kg , kg to pound

Best Scientific Calculator Ever

Awesome calculator ! ***** by Eric in CA Mar6,2011
Handles expressions correctly as written and shown in the bar above the answer . No need to check work by re-entering numbers ! This is a great app !

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Finally a good free app *****
by Mike Wege Apr 6 , 2011
Oh got this is perfect ! I love the modifiable history function . No more "losing track"
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Best app for bracketed equations ******
by Jime3 May 17 ,2011