Subversion Repositories wimsdev

!goto $wims_read_parm

:def

title=Circle

input=function

!exit

:proc

formula=!item 1 of $formula

option=!lower $option

option2=!lower $option2

option=!word 1 of $option

option2=!word 1 of $option2

!if $option=$empty or $option2=$empty

 error=empty_data

 !exit

!endif

!if $option notwordof radius diameter circumference area or \

    $option2 notwordof radius diameter circumference area

 error=bad_option

 !exit

!endif

o1=!positionof item $option in radius,diameter,circumference,area

o2=!positionof item $option2 in radius,diameter,circumference,area

t1=!item $o1 of $formula,($formula)/2,($formula)/(2*pi),sqrt(($formula)/pi)

t2=!item $o2 of r, 2*r, 2*pi*r, pi*r^2

result=!exec pari r=$t1; print($t2);

!exit

:output

A circle with

!item $o1 of radius,diameter,circumference,area

!htmlmath = $formula

&nbsp;:<p>

!item $o2 of radius,diameter,circumference,area

!htmlmath = $result

 .

!exit