var fDesc=new Array(); fDesc[0] = "Do you need help knowing when your algebraic working is correct? Then Algy 2 is just what you are looking for. Algy 2 is able to pinpoint any line of working that contains an error. This application encourages experimentation and perseverance with symbolic manipulation (algebra).

Users simply enter mathematical 'working' into Algy 2 as they would on paper - no computer syntax is involved. Algy 2 will then check the logic of the 'working' and provide immediate feedback to the user, pinpointing which line(s) of the working have a mathematical error. The user can then edit and recheck their working."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }