틀
계산기3(r2판 RAW)

[[분류:계산용 틀]]
{{{#!if (식==null)&&(식=""), 합=(식.indexOf("+")!=-1), 차=(식.indexOf("-")!=-1), 곱=(식.indexOf("*")!=-1), 몫=(식.indexOf("/")!=-1)
}}}{{{#!if 판=합.toString()+차.toString()+곱.toString()+몫.toString(), 오류=(판.length==19)?0:((판.length==20)?1:2)
}}}