MapleToComplexFloat32 - Maple Programming Help

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MapleToComplexFloat32

convert a Maple object to a 32-bit complex float pair

MapleToComplexFloat64

convert a Maple object to a 64-bit complex float pair

MapleToComplexFloatDAG

convert a Maple object to a complex software float pair

MapleToFloat32

convert a Maple object to a 32-bit float

MapleToFloat64

convert a Maple object to a 64-bit float

MapleToInteger8

convert a Maple object to a 8-bit integer

MapleToInteger16

convert a Maple object to a 16-bit integer

MapleToInteger32

convert a Maple object to a 32-bit integer

MapleToM_BOOL

convert a Maple object to a hardware boolean

MapleToM_INT

convert a Maple object to a machine word sized integer

MapleToString

convert a Maple object to a character array

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

MapleToComplexFloat32(kv, s)

MapleToComplexFloat64(kv, s)

MapleToComplexFloatDAG(kv, s)

MapleToFloat32(kv, s)

MapleToFloat64(kv, s)

MapleToInteger8(kv, s)

MapleToInteger16(kv, s)

MapleToInteger32(kv, s)

MapleToM_BOOL(kv, s)

MapleToM_INT(kv, s)

MapleToString(kv, s)

Parameters

kv

-

kernel handle returned by StartMaple

s

-

Maple object

Description

• 

These functions are part of the OpenMaple interface to Microsoft Visual Basic.

• 

The MapleTo* functions convert a Maple object to a hardware data structure format.  The return values are defined in maple.bas.

  

Note: The maple.bas file is in the extern/include directory of your Maple installation.

• 

Floating-point numbers may lose precision during the conversion to hardware size data.

• 

Conversion from a Maple string object to an integer returns the ASCII value of the first character in that string.  Conversion from a Maple boolean to an integer returns 1 for true, 0 for false, and -1 for FAIL.

• 

The M_INT and M_BOOL conversions are equivalent to MapleToInteger32. They are provided in the C API for machine word-size conversions. Future versions of VB OpenMaple may allow up to 64-bit conversions using these functions, depending on the underlying hardware.

Examples

    Function MyRand(ByVal kv As Long) As Double

    Dim r As Long

    r = EvalMapleStatement(kv,

             "RandomTools:-Generate([integer(range=-2^31..2^31-1),float]);")

    If IsMapleList(kv, r) And MapleNumArgs(kv, r) = 2 Then

         Dim f As Double

         Dim i As Long

         i = MapleToInteger32(kv, MapleListSelect(kv, r, 1))

         f = MapleToFloat64(kv, MapleListSelect(kv, r, 2))

         MyRand = i * f

    Else

         MyRand = 0

    End If

    End Function

See Also

OpenMaple

OpenMaple/VB/API

 


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