Dev (BL): - Evaluate query features - Decimal point - Consecutive operator validations - Most of the work for query screen is done  Remarks:  - Fix the bug with many braces (Remove unnecessary braces to fix)
Dev (BL):
- Evaluate query features
- Decimal point
- Consecutive operator validations
- Most of the work for query screen is done
 Remarks:
 - Fix the bug with many braces (Remove unnecessary braces to fix)

syamgullipalli/simple_calculator,syamgullipalli/simple_calculator