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Sym(...)
Expr(x)Sym returns a "Sym" object and Expr returns an
"Expr" object."Sym" is internally a yacas character string.
An object of class "Expr" is internally an R expression.
One can combine such objects using the Math and Ops R operators (see
help(Math) and help(Ops) for a list). Also there are methods for a
number of R generics:
as.character.Sym,
as.expression.Sym,
determinant.Sym,
deriv.Sym and
print.Sym
and yacas-oriented functions:
Clear,
Conjugate,
Expand,
Factor,
Factorial,
I,
Identity,
Infinity,
Integrate,
Inverse,
InverseTaylor,
Limit,
List,
N,
Newton,
Pi,
Precision,
PrettyForm,
PrettyPrinter,
Set,
Simplify,
Solve,
Subst,
Taylor,
TeXForm,
Ver and "all of which have
the same meaning as the corresponding yacas commands.
Try vignette("Rycas-Sym") for many examples.x <- Sym("x")
x*x
Integrate(x*x, x)
Sym("
acos(Sym("1/2"))
y <- Exprq(x)
y*y
deriv(y*y, y)
Exprq(acos(1/2))Run the code above in your browser using DataLab