var fDesc=new Array(); fDesc[0] = "GCalc is designed to provide a basic, easy-to-use, well-balanced set of graphing functionality for algebra, pre-calculus, calculus and beyond. In order for GCalc to run, you have to have installed on your computer Java 1.4 (or higher).

There are several functions you can perform: standard arithmetic operations (exponentiation, multiplication, division, addition, subtraction), trigonometric functions, hyperbolic functions, sign functions, roots, exponential/logarithm, engineering functions, rounding functions, sum and product, calculus, equality/inequality operations, Boolean operations, piecewise functions."; 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 = ''; } }