+#include "xtended.hh"
+#include "Text.hh"
+#include <math.h>
+
+#include "floats.hh"
+
+class AsinPrim : public xtended
+{
+
+ public:
+
+ AsinPrim() : xtended("asin") {}
+
+ virtual unsigned int arity () { return 1; }
+
+ virtual bool needCache () { return true; }
+
+ virtual Type infereSigType (const vector<Type>& args)
+ {
+ assert (args.size() == 1);
+ return floatCast(args[0]);
+ }
+
+ virtual void sigVisit (Tree sig, sigvisitor* visitor) {}
+
+ virtual int infereSigOrder (const vector<int>& args) {
+ return args[0];
+ }
+
+
+ virtual Tree computeSigOutput (const vector<Tree>& args) {
+ num n;
+ if (isNum(args[0],n)) {
+ return tree(asin(double(n)));
+ } else {
+ return tree(symbol(), args[0]);
+ }
+ }
+
+ virtual string generateCode (Klass* klass, const vector<string>& args, const vector<Type>& types)
+ {
+ assert (args.size() == arity());
+ assert (types.size() == arity());
+
+ return subst("asin$1($0)", args[0], isuffix());
+ }
+
+ virtual string generateLateq (Lateq* lateq, const vector<string>& args, const vector<Type>& types)
+ {
+ assert (args.size() == arity());
+ assert (types.size() == arity());
+
+ return subst("\\arcsin\\left($0\\right)", args[0]);
+ }
+
+};
+
+
+xtended* gAsinPrim = new AsinPrim();
+
+