setFract method
Implementation
EasyClip setFract( String chr, int num, int denom ){
_setEnv();
int index = ClipMath.char( chr );
bool isMinus = ((num < 0) && (denom >= 0)) || ((num >= 0) && (denom < 0));
_param.fractSetMinus( index, isMinus, false );
_param.setNum ( index, ClipMath.abs( num .toDouble() ), false );
_param.setDenom ( index, ClipMath.abs( denom.toDouble() ), false );
_param.fractReduce ( index, false );
return this;
}