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<head><title>SCSCPConnection <== Thing -- Execute computations using SCSCP</title>
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<div><h1>SCSCPConnection <== Thing -- Execute computations using SCSCP</h1>
<div class="single"><h2>Synopsis</h2>
<ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>s x</tt></div>
</dd></dl>
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<li><span>Operator: <a href="../../Macaulay2Doc/html/__lt_eq_eq.html" title="a unary and binary operator"><==</a></span></li>
<li><div class="single">Inputs:<ul><li><span><tt>s</tt>, <span>an object of class <a href="___S__C__S__C__P__Connection.html" title="The class of all SCSCP connections">SCSCPConnection</a></span>, The server that should compute it</span></li>
<li><span><tt>x</tt>, <span>a <a href="../../Macaulay2Doc/html/___Thing.html">thing</a></span>, The expression to be computed </span></li>
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<li><div class="single">Outputs:<ul><li><span><span>a <a href="../../Macaulay2Doc/html/___Thing.html">thing</a></span>, The result of the computation</span></li>
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<div class="single"><h2>Description</h2>
<div>As an example, we connect to a locally running SCSCP server: <table class="examples"><tr><td><pre>
i1 : s = newConnection("127.0.0.1", 26135)
o1 = SCSCP Connection to GAP (4.dev) on 127.0.0.1:26135
o1 : SCSCPConnection
i2 : s( (hold 2) + 3)
o2 = 5
i3 : close s
i4 : </pre>
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We could also explicitly have a look at the OpenMath that's being passed around<table class="examples"><tr><td><pre>
i1 : s = newConnection("127.0.0.1", 26135)
o1 = SCSCP Connection to GAP (4.dev) on 127.0.0.1:26135
o1 : SCSCPConnection
i2 : o = openMath ( (hold 2) + 3 )
o2 = <OMA
<OMS cd="arith1" name="plus"
<OMI "2"
<OMI "3"
o2 : XMLnode
i3 : s(o)
o3 = <OMOBJ
<OMATTR
<OMATP
<OMS cd="scscp1" name="call_id"
<OMSTR "1"
<OMA
<OMS cd="scscp1" name="procedure_completed"
<OMI "5"
o3 : XMLnode
i4 : value oo
o4 = 5
i5 : close s
i6 : </pre>
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Another syntax offered is using the <== and <=== operators. The first of these denotes a computation that returns the computed object, whereas the second denotes a computation that returns a reference (i.e. a remote object). Fortunately, these operators have lower parsing precedence than most others, so few parentheses will be required.<table class="examples"><tr><td><pre>
i1 : s = newConnection("127.0.0.1", 26136)
o1 = SCSCP Connection to Magma (0.3.0) on 127.0.0.1:26136
o1 : SCSCPConnection
i2 : s <== (hold 2)^32
o2 = 4294967296
i3 : s <=== (hold 2)^333
o3 = << Remote Magma object >>
o3 : RemoteObject
i4 : 2^301
o4 = 4074071952668972172536891376818756322102936787331872501272280898708762599526673412366794752
i5 : s <== o3/o4
o5 = 4294967296
o5 : QQ
i6 : close s
i7 : </pre>
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<div class="single"><h2>See also</h2>
<ul><li><span><a href="_new__Connection.html" title="Create a connection to an SCSCP server">newConnection</a> -- Create a connection to an SCSCP server</span></li>
<li><span><a href="___Manipulator_sp__S__C__S__C__P__Connection.html" title="Close an SCSCP connection">Manipulator SCSCPConnection</a> -- Close an SCSCP connection</span></li>
<li><span><a href="___Remote__Object.html" title="The class of all remote SCSCP objects">RemoteObject</a> -- The class of all remote SCSCP objects</span></li>
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