--- loncom/html/adm/help/tex/Script_Functions.tex	2003/06/10 19:29:26	1.1
+++ loncom/html/adm/help/tex/Script_Functions.tex	2020/07/29 11:31:02	1.16
@@ -1,8 +1,8 @@
 \label{Script_Functions}
 
 
-A list of functions that have been written that are available in the
-Safe space scripting environment inside a problem. 
+This is a list of functions that have been written that are available in the
+Safe space scripting environment inside a problem: 
 
 \begin{itemize}
 \item sin(x), cos(x), tan(x) 
@@ -17,7 +17,8 @@ Safe space scripting environment inside
 \item N\%M (modulo function)
 \item sinh(x), cosh(x), tanh(x) 
 \item asinh(x), acosh(x), atanh(x) 
-\item roundto(x,n) 
+\item roundto(x,n)
+\item cas(s,e,l) 
 \item web({}``a'',''b'',''c'') or web(a,b,c) 
 \item html({}``a'') or html(a) 
 \item j0(x), j1(x), jn(n,x), jv(y,x) 
@@ -27,19 +28,29 @@ Safe space scripting environment inside
 \item tex({}``a'',''b'') or tex(a,b) 
 \item var\_in\_tex(a) 
 \item to\_string(x), to\_string(x,y) 
-\item class(), section() 
-\item name(), student\_number() 
-\item open\_date(), due\_date(), answer\_date() 
+\item class(), sec(), classid() 
+\item name(), firstname(), middlename(), lastname(), student\_number()
+\item check\_status(partid)
+\item open\_date(partid), due\_date(partid), answer\_date(partid) 
+\item open\_date\_epoch(partid), due\_date\_epoch(partid), answer\_date\_epoch(partid)
+\item submission(partid,responseid,version)
+\item currentpart()
 \item sub\_string() 
 \item array\_moments(array) 
-\item format(x,y),prettyprint(x,y) 
+\item format(x,y),prettyprint(x,y,target),dollarformat(x,target) 
+\item languages
 \item map(...) 
 \item caparesponse\_check 
 \item caparesponse\_check\_list
+\item parameter\_setting(name,partid)
+\item EXT()
+\item stored\_data(name,partid)
+\item wrong\_bubbles(correct,lower,upper,step,@given)
 \end{itemize}
 
 
-We also support these functions from Math::Cephes \begin{verbatim}
+We also support these functions from Math::Cephes 
+\begin{verbatim}
 
  bdtr:  Binomial distribution
  bdtrc:  Complemented binomial distribution
@@ -64,5 +75,44 @@ We also support these functions from Mat
  stdtr:  Student's t distribution
  stdtri:  Functional inverse of Student's t distribution
 
-\end{verbatim} Please see Math::Cephes for more information 
+\end{verbatim}
+
+See https://metacpan.org/pod/Math::Cephes for more information 
+
+Support for complex numbers in the Safe space scripting environment is available via the  
+LONCAPA::LCMathComplex package, which is the standard Math::Complex module available from CPAN,
+modified to work in Safe space.
+
+These functions from LONCAPA::LCMathComplex are available:
+
+\begin{verbatim}
+Re($z)
+Im($z)
+arg($z)
+abs($z)
+\end{verbatim}
+
+where \$z is a complex number created using the Cartesian form,
+where \$a and \$b are numbers in one of the following ways:
+
+\begin{verbatim}
+$z = LONCAPA::LCMathComplex->make($a, $b);
+$z = cplx($a, $b);
+$z = $a + $b*i;
+\end{verbatim}
+
+or created using the polar form, where \$m and \$n are numbers, in which the first 
+argument is the modulus, and the second is the angle in radians:
+
+\begin{verbatim}
+$z = LONCAPA::LCMathComplex->emake($m, pi/$n);
+$z = cplxe($m, pi/$n);
+\end{verbatim}
+
+Where there is no overlap with function names used for Math::Cephes functions, 
+then you can just use the LCMathComplex functions directly, e.g.. \&cplx(), \&Re(), \&Im(), 
+but where there is overlap, as is the case for tanh(), to ensure the function from LCMathComplex is called, 
+include the full namespace identifier, e.g., &LONCAPA::LCMathComplex::tanh().
+
+See: https://metacpan.org/pod/Math::Complex for more information.