Math Utilities

Ceil

Rounds any decimal number up to the nearest integer using mathematical ceiling function. Access via MCP in Cursor or Windsurf, or call GET /v1/math/ceil with a number parameter. Returns 4 for input 3.2, returns -3 for input -3.8. Guarantees deterministic results across all AI coding assistants.

API Endpoint

GET /v1/math/ceil

Code Examples

curl "https://tinyfn.io/v1/math/ceil" \
  -H "X-API-Key: YOUR_API_KEY"
const response = await fetch('https://tinyfn.io/v1/math/ceil', {
  headers: { 'X-API-Key': 'YOUR_API_KEY' }
});
const data = await response.json();
console.log(data);
import requests

response = requests.get('https://tinyfn.io/v1/math/ceil',
    headers={'X-API-Key': 'YOUR_API_KEY'})
data = response.json()
print(data)

Use via MCP

Add to your AI agent

Connect your AI agent (Claude, Cursor, Windsurf, etc.) to TinyFn's math tools:

{
  "mcpServers": {
    "tinyfn-math": {
      "url": "https://tinyfn.io/mcp/math",
      "headers": {
        "X-API-Key": "YOUR_API_KEY"
      }
    }
  }
}

Learn more about MCP setup →

FAQ

How does ceil handle negative numbers?

Ceil rounds toward positive infinity, so -3.8 becomes -3 (not -4). This follows standard mathematical ceiling behavior.

What's the difference between ceil, floor, and round functions?

Ceil always rounds up (3.1 → 4), floor always rounds down (3.9 → 3), round goes to nearest integer (3.1 → 3, 3.7 → 4).

Can I use ceil with MCP in my AI coding workflow?

Yes, MCP tools like ceil give Claude Code and Cursor actual math computation instead of approximate results, ensuring consistent rounding in code generation.

What input formats does the ceil endpoint accept?

Accepts standard decimal numbers as query parameters. Both positive and negative decimals work: 5.1, -2.7, 0.001.

Does ceil work with integers or return errors?

Ceil works fine with integers, returning the same value (5 → 5). No error handling needed for whole numbers.

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