By this calculator you can determine the value of an arbitrary arithmetic expression using the following arithmetic operations, functions or constants and any parenthesis structure.
+ ,  , * , / , ^
sqrt, sqr,
sin, cos, tan,
exp, ln, log, pow,
abs, round,
biko, fak, phi, phi_quant,
sum
biko(n,k)  binomial coefficient n over k 
fak(n)  n faculty 
ln(x)=log(x)  natural logarithm (log base e) 
pow(a,b)=a^b  power function 
phi(z)  distribution function of standardized normal distribution 
phi_quant(p)  pquantile of standardized normal distribution, 0<p<1 
sum(f(i),i,i0,i1)  sum over f(i) for i=i0,…,i1, name of summation index can be freely selected 
prod(f(i),i,i0,i1)  product over f(i) for i=i0,…,i1, name of product index can be freely selected 
pi, e
res  the last actual result,
c1, c2, c3  memories for interim results.
You can include these constants into arithmetical expressions.
( , )
name  name of constant
value  arithmetic expression
The definition is activated by click to
=
A correct definition is confirmend by OK and the constant is diplayed in constant window.
Example: def(5pi:5*pi)
name  name of function and name of independent variable in brackets, e.g. f1(x)
definition  arithmetic expression depending on independent variable
Example: def(f1(x):x*x)
Each definition is to activate by click to
=
A correct definition is confirmend by OK and the functiom is diplayed in function window.
Examples:
def(tan(x):sin(x)/cos(x))
def(mysqr(z):z*z)
def(2_power(x): prod(2,i,1,x)) > 2^x
1+1/(1+1/(1+1))
phi_quant(0.95)
sqr(sin(1.3))+cos(1.69^0.5)*sqrt(1sin(20.7)*sin(1+0.3))
sum(i*i,i,1,10)
Some further 'examples':
(1+3
1+3*a
(11/(ln(sqr(sin(3*pi))+sqr(cos(exp(ln(5*pi)))))))
: )
Function: Computes to a given evaluation structure and corresponding checklist data estimation values
for the scores
Syntax: eva(sure_data_record)
The sure_data_record contains in form of a standard text file the model structure as well the checklist data in form of a CSV(comma separated values)file.
Structure of sure_data_record:
$r,$ 
$s_1,...,s_r,$ 
$x_{11}^{(1)},...,x_{1s_1}^{(1)},...,x_{r1}^{(1)},...,x_{rs_r}^{(1)},$ 
$\cdots$ 
$x_{11}^{(n)},...,x_{1s_1}^{(n)},...,x_{r1}^{(n)},...,x_{rs_r}^{(n)}$ 
Here denotes:
 number of key goals  
 number of sub goals of 

 observation value for the 

 sample size 
For a more transparent presentation the sure_data_record can contain spaces and line breaks.
Input
Result
Function: Computes to a given evaluation structure and corresponding checklist data estimation values
for the calibrated scores
Syntax: ceva(sure_data_record)
For definition of sure_data_record see we refer to evaprocedure.
Example:
Input
Result
Function: Generates to a given SURE model data record an HTMLtable with the corresponding score estimation values obtained by evaprocedure.
Syntax: eva_html_tab0(sure_data_record)
For definition of sure_data_record see we refer to evaprocedure.
Example:
Input
Result
Function: Generates to a given SURE model data record an HTMLtable with the corresponding calibrated score estimation values obtained by cevaprocedure.
Syntax: ceva_html_tab0(sure_data_record)
For definition of sure_data_record see we refer to evaprocedure.
Example:
Input
Result
Function: Generates random SURE model data record.
Syntax: eva_rand
number of key goals  
number of sub goals of 

bounds for evaluation interval, 

bound for random scores, 

sample size 
Example:
Input
Result
Function: Generates to a given SURE model data record a LaTeXtable with the corresponding score estimation values obtained by evaprocedure. The check list data are vertically oriented.
Syntax: eva_tex_tab0(sure_data_record)
For definition of sure_data_record see we refer to evaprocedure.
Example:
Input
Result
Function: Generates to a given SURE model data record a LaTeXtable with the corresponding calibrated score estimation values obtained by cevaprocedure. The check list data are vertically oriented.
Syntax: ceva_tex_tab0(sure_data_record)
For definition of sure_data_record see we refer to evaprocedure.
Example:
Input
Result
Function: Generates to a given SURE model data record a LaTeXtable with the corresponding score estimation values obtained by evaprocedure. The check list data are horizontally oriented.
Syntax: eva_tex_tab1(sure_data_record)
For definition of sure_data_record see we refer to evaprocedure.
Example:
Input
Result
Function: Generates to a given SURE model data record a LaTeXtable with the corresponding calibrated score estimation values obtained by cevaprocedure. The check list data are horizontally oriented.
Syntax: ceva_tex_tab1(sure_data_record)
For definition of sure_data_record see we refer to evaprocedure.
Example:
Input
Result
Welcome to our web site meercats.org.