Hi guys, I found this forum by chance. Was wondering if anyone could help out with my problem. I am very new to this COMSOL and I am required to tackle a problem. I am required to simulate laser drilling onto a material using comsol to obtain the heat transfer pattern. I have chosen silicon in the drop-down box I used the New>FEM>Heat Transfer>Conduction>Transient Analysis. I then created a rectangle with 3 sides thermally insulated and the top is having heat flux. Under Boundary settings, I need to enter the equation in the Q field as the heat source The equation is like this: (10^7) x exponential (-10^3 x X^2) for a time of 2 seconds. I keep having syntax errors. How do I put in the equation properly? Thanks.