Postfix Calculator
Reverse Polish Notation (RPN)
Sample Streaming Data Input & Outputs
Live
| Input (string) | Output (number) | Explanation |
|---|---|---|
"10 3 +" |
13 | Equivalent to 10 + 3 |
"10 3 2 + -" |
5 | Equivalent to 10 - (3 + 2) |
"10 3 * 2 ^" |
900 | Equivalent to (10 * 3)^2 |
How it works: Numbers are pushed onto a stack, operators pop two numbers, perform the operation, and push the result back.
| Streaming: Real-time RPN calculations simulating data engineering pipeline.
PART 2: SYSTEM DESIGN
RPN Calculator System
Data Processing Architecture
Architecture Diagram
System Architecture
Data flow from web interface through processing to results
RPN calculator processing pipelineNote
Enterprise Design: This shows a comprehensive system architecture. Most businesses use simpler solutions that focus on core functionality.
How It Works
1
User submits RPN expression
2
Rails API sends to Kafka
3
Processors calculate results
4
Results sent to dashboard & database
Key Features
- Real-time processing
- Auto-scaling
- Fault tolerance
- Monitoring & alerts