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SYMBMATH.HL3
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20. Keywords
SymbMath has three versions. Shareware and Student Versions
are lack some functions, (see the document file SymbMath.DOC for
detail). The following special symbols (about 110 words) are reserved:
20.1 A list of keywords in alphabetical order
----------------------------------------------------------------------
abs, acos, acosh, acot, acoth, acsc, acsch, asec, asech, asin,
asinh, assume, assumed, atan, atanh,
BASIC,
clear, clear_all, cleared, coef, complex, constant, cos, cosh, cot,
coth, csc, csch,
d, define, defined, deno, discont, done,
E, e, end, erf, exp, expand, ExpExpand,
fac, factor, FORTRAN, from,
i, im, inf, inte,
last, left, lim, list, ln, LnExpand,
nume, Numerical, NumIntegrate,
Off, On, Output,
pi, prod, PASICAL,
re, read, real, right,
sec, sech, show_all, sgn, sin, sinh, solve, sqrt, subs, sum, step,
system,
table, tan, tanh, to, TwoDim,
undefined,
zero,
+, -, *, /, ^, **, (), [], =, ==, >, >=, <, <=, <>, !, #, ,
-----------------------------------------------------------------------
20.2 A list of keywords in functional order
---------------------------------------------------------------------
1. Built-in constants: i, e, pi, inf, zero, constant, discont,
undefined.
2. Built-in variables: last.
3. Negative and positive: -, +.
4. Algebraic operators: +, -, *, /, ^, **, (), =, ==.
5. Logic operators: ==, >, >=, <, <=, <>.
6. Algebraic functions: -x, sqrt(x), sgn(x), abs(x), n!, fac(n).
7. Exponential functions: exp(x), ln(x), erf(x).
8. Trigonometric functions: sin(x), cos(x), tan(x), csc(x), sec(x),
cot(x), asin(x), acos(x), atan(x), acot(x), asec(x), acsc(x).
9. Hyperbolic functions: sinh(x), cosh(x), tanh(x), csch(x), sech(x),
coth(x), asinh(x), acosh(x), atanh(x), acoth(x), acsch(x),
asech(x).
10. User-defined functions: define(f(x)=x^2).
11. Calculus functions: d((y)/d(x)), inte((y)*d(x)), subs(x=a to y),
lim(x=a, y), sum(), prod().
12. Transformation functions: list(), expand(), factor(), solve(),
table(), coef(), left(), right(), nume(), deno(), re(), im().
13. List: [a, b].
14. Element of list: f[1], last[1].
15. Switches: =, Numerical, NumIntegrate, Output, On, Off, BASIC,
FORTRAN, TwoDim, ExpExpand, LnExpand.
16. Commands: system(), clear(), clear_all, show_all.
17. Separators: "," , from, to, step.
18. Assume: assume(a>0), assume(b==real).
19. Define: define(f(x)=x^2).
20. Comment: #.
21. Action: defined, done, cleared, assumed.
--------------------------------------------------------------------