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Annotation of loncom/html/adm/help/tex/Script_Functions.tex, revision 1.17

1.1       bowersj2    1: \label{Script_Functions}
                      2: 
                      3: 
1.2       vandui11    4: This is a list of functions that have been written that are available in the
                      5: Safe space scripting environment inside a problem: 
1.1       bowersj2    6: 
                      7: \begin{itemize}
                      8: \item sin(x), cos(x), tan(x) 
                      9: \item asin(x), acos(x), atan(x), atan2(y,x) 
                     10: \item log(x), log10(x) 
                     11: \item exp(), pow(x,y), sqrt(x) 
                     12: \item abs(x), sgn(x) 
                     13: \item erf(x), erfc(x) 
                     14: \item ceil(x), floor(x) 
                     15: \item min(...), max(...) 
                     16: \item factorial(n) 
                     17: \item N\%M (modulo function)
                     18: \item sinh(x), cosh(x), tanh(x) 
                     19: \item asinh(x), acosh(x), atanh(x) 
1.6       www        20: \item roundto(x,n)
1.10      www        21: \item cas(s,e,l) 
1.1       bowersj2   22: \item web({}``a'',''b'',''c'') or web(a,b,c) 
                     23: \item html({}``a'') or html(a) 
                     24: \item j0(x), j1(x), jn(n,x), jv(y,x) 
                     25: \item y0(x), y1(x), yn(n,x), yv(y,x) 
                     26: \item random 
                     27: \item choose 
                     28: \item tex({}``a'',''b'') or tex(a,b) 
                     29: \item var\_in\_tex(a) 
                     30: \item to\_string(x), to\_string(x,y) 
1.11      www        31: \item class(), sec(), classid() 
                     32: \item name(), firstname(), middlename(), lastname(), student\_number()
1.3       albertel   33: \item check\_status(partid)
1.8       www        34: \item open\_date(partid), due\_date(partid), answer\_date(partid) 
1.9       www        35: \item open\_date\_epoch(partid), due\_date\_epoch(partid), answer\_date\_epoch(partid)
                     36: \item submission(partid,responseid,version)
                     37: \item currentpart()
1.1       bowersj2   38: \item sub\_string() 
                     39: \item array\_moments(array) 
1.3       albertel   40: \item format(x,y),prettyprint(x,y,target),dollarformat(x,target) 
1.7       albertel   41: \item languages
1.1       bowersj2   42: \item map(...) 
                     43: \item caparesponse\_check 
                     44: \item caparesponse\_check\_list
1.12      www        45: \item parameter\_setting(name,partid)
1.14      lira       46: \item EXT()
1.12      www        47: \item stored\_data(name,partid)
1.15      raeburn    48: \item wrong\_bubbles(correct,lower,upper,step,@given)
1.1       bowersj2   49: \end{itemize}
                     50: 
                     51: 
1.4       albertel   52: We also support these functions from Math::Cephes 
                     53: \begin{verbatim}
1.1       bowersj2   54: 
                     55:  bdtr:  Binomial distribution
                     56:  bdtrc:  Complemented binomial distribution
                     57:  bdtri:  Inverse binomial distribution
                     58:  btdtr:  Beta distribution
                     59:  chdtr:  Chi-square distribution
                     60:  chdtrc:  Complemented Chi-square distribution
                     61:  chdtri:  Inverse of complemented Chi-square distribution
                     62:  fdtr:  F distribution
                     63:  fdtrc:  Complemented F distribution
                     64:  fdtri:  Inverse of complemented F distribution
                     65:  gdtr:  Gamma distribution function
                     66:  gdtrc:  Complemented gamma distribution function
                     67:  nbdtr:  Negative binomial distribution
                     68:  nbdtrc:  Complemented negative binomial distribution
                     69:  nbdtri:  Functional inverse of negative binomial distribution
                     70:  ndtr:  Normal distribution function
                     71:  ndtri:  Inverse of Normal distribution function
                     72:  pdtr:  Poisson distribution
                     73:  pdtrc:  Complemented poisson distribution
                     74:  pdtri:  Inverse Poisson distribution
                     75:  stdtr:  Student's t distribution
                     76:  stdtri:  Functional inverse of Student's t distribution
                     77: 
1.4       albertel   78: \end{verbatim}
                     79: 
1.16      raeburn    80: See https://metacpan.org/pod/Math::Cephes for more information 
                     81: 
                     82: Support for complex numbers in the Safe space scripting environment is available via the  
                     83: LONCAPA::LCMathComplex package, which is the standard Math::Complex module available from CPAN,
                     84: modified to work in Safe space.
                     85: 
                     86: These functions from LONCAPA::LCMathComplex are available:
                     87: 
                     88: \begin{verbatim}
                     89: Re($z)
                     90: Im($z)
                     91: arg($z)
                     92: abs($z)
                     93: \end{verbatim}
                     94: 
                     95: where \$z is a complex number created using the Cartesian form,
                     96: where \$a and \$b are numbers in one of the following ways:
                     97: 
                     98: \begin{verbatim}
                     99: $z = LONCAPA::LCMathComplex->make($a, $b);
                    100: $z = cplx($a, $b);
                    101: $z = $a + $b*i;
                    102: \end{verbatim}
                    103: 
                    104: or created using the polar form, where \$m and \$n are numbers, in which the first 
                    105: argument is the modulus, and the second is the angle in radians:
                    106: 
                    107: \begin{verbatim}
                    108: $z = LONCAPA::LCMathComplex->emake($m, pi/$n);
                    109: $z = cplxe($m, pi/$n);
                    110: \end{verbatim}
                    111: 
                    112: Where there is no overlap with function names used for Math::Cephes functions, 
                    113: then you can just use the LCMathComplex functions directly, e.g.. \&cplx(), \&Re(), \&Im(), 
                    114: but where there is overlap, as is the case for tanh(), to ensure the function from LCMathComplex is called, 
1.17    ! raeburn   115: include the full namespace identifier, e.g., LONCAPA::LCMathComplex::tanh().
1.16      raeburn   116: 
                    117: See: https://metacpan.org/pod/Math::Complex for more information.
1.1       bowersj2  118: