sci-calc-pro

Professional scientific calculator CLI for Node.js. Zero dependencies, pure JavaScript.

Install

npm install -g sci-calc-pro

Or use directly in a project:

npx sci-calc-pro "sin(45)"

Usage

One-liner

sci-calc "2^10"
sci-calc "sin(45) + cos(60)"
sci-calc "sqrt(144)"
sci-calc "fact(10)"
sci-calc "log(1000)"
sci-calc "C(10,3)"

Interactive REPL

sci-calc --repl
sci-calc

sci> 2 + 3
  = 5
sci> sin(45)
  = 0.707106781187
sci> set x = 10
sci> x^2
  = 100
sci> help
sci> exit

Functions

| Category | Functions | | -------------- | --------------------------------------------------- | | Basic | sqrt, cbrt, abs, pow, mod | | Trigonometric | sin, cos, tan, asin, acos, atan, atan2 | | Hyperbolic | sinh, cosh, tanh, asinh, acosh, atanh | | Logarithmic | log (base 10), ln (natural), log2, exp, exp2, exp10 | | Combinatorics | fact/factorial, perm/P, comb/C | | Rounding | round, floor, ceil, trunc | | Aggregation | max, min |

Constants

• pi - 3.14159265358979...
• e - 2.71828182845904...
• phi - Golden ratio (1.61803398874989...)

REPL Commands

| Command | Description | | ----------------- | ------------------------------ | | help | Show help | | list | List all functions | | vars | Show stored variables | | set x = expr | Store a variable | | history | Show calculation history | | unit deg/rad | Set angle unit | | ms expr | Store to memory | | mr | Recall memory | | mc | Clear memory | | clear | Clear screen | | exit | Quit |

Flags

sci-calc <expression>        Evaluate expression
sci-calc --repl              Start interactive mode
sci-calc --help              Show help
sci-calc --version           Show version
sci-calc --list              List functions
sci-calc --unit <deg|rad>    Set angle unit for evaluation

Examples

# Trig in degrees
sci-calc "sin(30)"
sci-calc "atan2(1,1)"

# Factorials and combinations
sci-calc "fact(20)"
sci-calc "C(52,5)"          # 5-card poker hands

# Complex expressions
sci-calc "sqrt(e^2 + pi^2)"
sci-calc "log(1000) + ln(e^5)"

# Powers and roots
sci-calc "2^128"
sci-calc "cbrt(27)"

# With angle unit
sci-calc --unit rad "sin(1.5708)"

License

MIT