# record 1: header: parent, keywords
# record 2: calling parameters
# record 3: submit buttons
# record 4: html form content

:calculus
limit, function, partial limit, sided limit

:datatype, function
operation, limit

:, Sided limit

:
 $submit1
 f(x) =
 <input name="formula" type="text" size="25" value="x/abs(x)">
 for
 <input name="variable" type="text" size="3" value="x">
 towards
 <input name="formula2" type="text" size="10" value="0">
 <select name="option">
 <option value="plus">from the right</option>
 <option value="minus">from the left</option>
 <option value="both">from both sides</option>
 </select>
