CalcTool

Command-line calculator with scientific functions. Basic arithmetic, percentage calculations, unit conversions, tip calculator, loan payment calculator, and scientific functions (sqrt, power, log, trig). Quick math from your terminal without opening a separate app.

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Install skill "CalcTool" with this command: npx skills add ckchzh/calctool

CalcTool

Quick math from your terminal. Basic, scientific, and financial calculations.

Commands

  • eval <expression> — Evaluate math expression
  • percent <value> <percent> — Calculate percentage
  • tip <amount> [percent] — Tip calculator
  • loan <amount> <rate> <years> — Loan payment calculator
  • convert <value> <from> <to> — Unit conversion
  • sci <function> <value> — Scientific (sqrt/log/sin/cos/tan)

Usage Examples

calctool eval "2 * (3 + 4) / 5"
calctool percent 250 15
calctool tip 85.50 20
calctool loan 300000 6.5 30

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  • Run calctool help for all commands

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