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The following variables offer certain physical and mathematical constants, and also some constants specific to LUX. These variables are read-only: They may be used in expressions, but cannot be changed. These variables are also global: They are recognized everywhere, including inside subroutines and functions.
| • #0: | Zero | |
| • #1: | One | |
| • #2pi: | Two pi | |
| • #42: | The answer to Life, Universe, and Everything | |
| • #c: | Speed of light (cgs) | |
| • #class: | LUX classes structure | |
| • #col: | Number of columns on the terminal | |
| • #coordsys: | LUX coordinate systems structure | |
| • #deg: | Degrees to radians | |
| • #d.r: | Degrees to radians | |
| • #e: | Base of natural logarithm | |
| • #ec: | Electron charge (cgs) | |
| • #event: | LUX events structure | |
| • #filetype: | Data file types | |
| • #g: | Gravitational constant (cgs) | |
| • #h: | Planck constant (cgs) | |
| • #hb: | Planck constant divided by pi (cgs) | |
| • #i: | Imaginary unit | |
| • #infty: | Infinity | |
| • #k: | Boltzmann constant (cgs) | |
| • #m: | Electron mass (cgs) | |
| • #max_args: | Maximum number of arguments | |
| • #max_byte: | Greatest value possible in a BYTE | |
| • #max_dims: | Maximum allowed number of array dimensions | |
| • #max_double: | Greatest value possible in a DOUBLE | |
| • #max_float: | Greatest value possible in a FLOAT | |
| • #max_int64: | ||
| • #max_long: | Greatest value possible in a LONG | |
| • #max_pixmap: | Greatest pixmap number | |
| • #max_window: | Greatest window number | |
| • #max_word: | Greatest value possible in an INT | |
| • #min_double: | Smallest nonzero value possible in a DOUBLE | |
| • #min_float: | Smallest nonzero value possible in a FLOAT | |
| • #min_int64: | ||
| • #min_long: | Most negative value possible in a LONG | |
| • #min_word: | Most negative value possible in an INT | |
| • #minus1: | Minus one | |
| • #msbfirst: | Byte order | |
| • #nan: | Not a Number | |
| • #pi: | Pi | |
| • #p3d: | Projection matrix | |
| • #r: | Gas constant (cgs) | |
| • #r.d: | Radians to degrees | |
| • #rad: | Radians to degrees | |
| • #row: | Number of lines on the terminal | |
| • #stack: | User stack | |
| • #type: | LUX data types | |
| • #typesize: | Sizes of data types | |
| • #zero: | System zero (don’t use) |
Next: Read-Write Global Vars, Previous: Packages, Up: Reference Manual [Contents][Index]