Uses of Class
com.wolfram.jlink.Expr

Packages that use Expr Package Description com.wolfram.jlink This is the main J/Link package, containing the classes and interfaces that programmers will use most. 

Uses of Expr in com.wolfram.jlink
Fields in com.wolfram.jlink declared as Expr Modifier and Type Field Description static Expr
Expr. INT_MINUSONE
Unused for now.static Expr
Expr. INT_ONE
Unused for now.static Expr
Expr. INT_ZERO
Unused for now.static Expr
Expr. SYM_COMPLEX
Unused for now.static Expr
Expr. SYM_FALSE
Unused for now.static Expr
Expr. SYM_INTEGER
Unused for now.static Expr
Expr. SYM_LIST
Unused for now.static Expr
Expr. SYM_NULL
Unused for now.static Expr
Expr. SYM_RATIONAL
Unused for now.static Expr
Expr. SYM_REAL
Unused for now.static Expr
Expr. SYM_STRING
Unused for now.static Expr
Expr. SYM_SYMBOL
Unused for now.static Expr
Expr. SYM_TRUE
Unused for now.Methods in com.wolfram.jlink that return Expr Modifier and Type Method Description Expr[]
Expr. args()
Gives an array of Exprs representing the arguments of this Expr.protected Expr
MathListener. callMathHandler(java.lang.String meth, java.lang.Object[] args)
Derived classes call this method from their event handler methods.static Expr
Expr. createFromLink(MathLink ml)
This factory method will only be used by advanced programmers who are creating their own classes that implement the MathLink interface.Expr
Expr. delete(int n)
Returns a new Expr that has the same head but the nth element deleted (counted from the end if n is negative).Expr
KernelLink. enableObjectReferences(boolean becomeDefaultJVM)
Call this method to enable the ability to pass Java objects "by reference" to Mathematica.Expr
MathLink. getExpr()
Reads an expression from the link and creates an Expr from it.Expr
Expr. head()
Gives a new Expr representing the head of this Expr.Expr
Expr. insert(Expr e, int n)
Returns a new Expr that has the same head but with e inserted into position n (counted from the end if n is negative).Expr
Expr. part(int i)
Gives a new Expr representing the specified part of this Expr.Expr
Expr. part(int[] ia)
Gives a new Expr representing the specified part of this Expr.Expr
MathLink. peekExpr()
Creates an Expr from the current expression, but does not drain it off the link.Expr
Expr. take(int n)
Returns a new Expr that has the same head but only the first n elements of this Expr (or last n elements if n is negative).Methods in com.wolfram.jlink that return types with arguments of type Expr Modifier and Type Method Description java.util.Iterator<Expr>
Expr. iterator()
Provides anIterator
to traverse this expression's arguments.Methods in com.wolfram.jlink with parameters of type Expr Modifier and Type Method Description void
KernelLink. evaluate(Expr e)
Sends an Expr for evaluation.byte[]
KernelLink. evaluateToImage(Expr e, int width, int height)
Sends graphics or plotting code to evaluate, then reads and discards all output except for the image data, which is returned as a byte array of GIF data.byte[]
KernelLink. evaluateToImage(Expr e, int width, int height, int dpi, boolean useFE)
Sends graphics or plotting code to evaluate, then reads and discards all output except for the image data, which is returned as a byte array of GIF data.java.lang.String
KernelLink. evaluateToInputForm(Expr e, int pageWidth)
Sends an Expr to evaluate, then reads and discards all output except for the result, which is returned.java.lang.String
KernelLink. evaluateToOutputForm(Expr e, int pageWidth)
Sends an Expr to evaluate, then reads and discards all output except for the result, which is returned.byte[]
KernelLink. evaluateToTypeset(Expr e, int width, boolean useStdForm)
Sends an Expr to evaluate, the result of which will be typeset, converted to a GIF, and the resulting data returned.Expr
Expr. insert(Expr e, int n)
Returns a new Expr that has the same head but with e inserted into position n (counted from the end if n is negative).Constructors in com.wolfram.jlink with parameters of type Expr Constructor Description Expr(Expr head, Expr... args)
Creates an Expr with the given head and arguments.Expr(java.lang.String head, Expr... args)
Creates an Expr with the given head and arguments.
