# Q: How can I use the CEL in CFX 10.0 to specify thevalue of a parameter over a range; e.g. different temperatures fordifferent values of "xGlobal":T = 10 [C] for xGlobal = 0 [m] to xGlobal = 1 [m]T = 50 [C] for xGlobal = 1 [m] to xGlobal = 2 [m]T = 55 [C] for xGlobal = 2 [m] to xGlobal = 3 [m]...and so on...A) You should use the step function for this.The step function works as follows:Step(x)=1, if x>0Step(x)=0.5, if x=0Step(x)=0, if x<0Therefore, to write the below you would need:xbar=x/1.0 [m]T1=10 [K]T2=50 [K]T3=55 [K]T = T1*step(1-xbar)+T2*step(2-xbar)*(step(xbar-1)+ T3*step(3-xbar)*(step(xbar-2).

 Q: How can I use the CEL in CFX 10.0 to specify thevalue of a parameter over a range; e.g. different temperatures fordifferent values of "xGlobal":T = 10 [C] for xGlobal = 0 [m] to xGlobal = 1 [m]T = 50 [C] for xGlobal = 1 [m] to xGlobal = 2 [m]T = 55 [C] for xGlobal = 2 [m] to xGlobal = 3 [m]...and so on...A) You should use the step function for this.The step function works as follows:Step(x)=1, if x>0Step(x)=0.5, if x=0Step(x)=0, if x<0Therefore, to write the below you would need:xbar=x/1.0 [m]T1=10 [K]T2=50 [K]T3=55 [K]T = T1*step(1-xbar)+T2*step(2-xbar)*(step(xbar-1)+ T3*step(3-xbar)*(step(xbar-2).