Calculator

Active

Models approximate math and get large or precise sums wrong; this computes the exact result.

3 tools

Exact calculation: evaluate math expressions (arithmetic, powers, roots, trig, logs, factorials), convert numbers between bases (binary, hex, decimal, and more), and convert Roman numerals. Computed locally with exact results, where a model would otherwise approximate.

Developer Toolscalculatormatharithmeticbase-conversionroman-numerals

Tools (3)

▶evaluate

Evaluate a math expression exactly (arithmetic, functions, and constants).

Free

Example prompts

“What is 1234567 * 89 / 7?”
“Calculate sqrt(2) + sin(pi/4)”
“What is 15% of 240?”
“Compute 2 to the power of 100”

Parameters

expressionstringrequired

The math expression to evaluate (e.g. "(12 + 5) * 3", "sqrt(2)", "15/100*240").

API Usage

curl -X POST "https://skill.askfaro.com/skills/calc/run" \
  -H "Authorization: Bearer faro_<your_key>" \
  -H "Content-Type: application/json" \
  -d '{
  "intent": {
    "prompt": "What is 1234567 * 89 / 7?"
  }
}'

CLI Usage

askfaro describe calc/calc.evaluate

Install pip install askfaro-cli, then askfaro auth login.

▶base_convert

Convert a number between bases (2 to 36), e.g. binary, hex, decimal.

Free

Example prompts

“Convert FF from hex to decimal”
“What is 255 in binary?”
“Convert 1010 from binary to decimal”
“2026 in hexadecimal”

Parameters

valueinteger,stringrequired

The number to convert, using digits valid for from_base (e.g. "FF", "1010", "255").

to_baseintegerrequired

Base to convert to (2-36).

from_baseintegeroptional

Base of the input. Defaults to 10.

API Usage

curl -X POST "https://skill.askfaro.com/skills/calc/run" \
  -H "Authorization: Bearer faro_<your_key>" \
  -H "Content-Type: application/json" \
  -d '{
  "intent": {
    "prompt": "Convert FF from hex to decimal"
  }
}'

CLI Usage

askfaro describe calc/calc.base_convert

Install pip install askfaro-cli, then askfaro auth login.

▶roman

Convert between integers and Roman numerals.

Free

Example prompts

“What is 2026 in Roman numerals?”
“Convert MMXXVI to a number”
“Roman numeral for 49”

Parameters

valueinteger,stringrequired

An integer 1-3999 for to_roman, or a Roman numeral string for from_roman.

actionstringoptional

Direction of conversion. Defaults to to_roman.

API Usage

curl -X POST "https://skill.askfaro.com/skills/calc/run" \
  -H "Authorization: Bearer faro_<your_key>" \
  -H "Content-Type: application/json" \
  -d '{
  "intent": {
    "prompt": "What is 2026 in Roman numerals?"
  }
}'

CLI Usage

askfaro describe calc/calc.roman

Install pip install askfaro-cli, then askfaro auth login.