how to use the functions

I'm doing an exercise with fem and i have 4 function. How do I use them one after the other to get a final result at the end?

Answer 1

[Walter Roberson]

temp1 = first_function(YourInput);
temp2 = second_function(temp1);
temp3 = third_function(temp2);
output = fourth_function(temp3);

[Andrea Daloisio]

thank you walter. so i have first function "kernel" second "kernel II" third "kernel III" and fourth "kernel IV"

the script will be

temp1 = kernel;
temp2 = kernel II(temp1);
temp3 = kernel III(temp2);
output = kernel IV(temp3);

Is it right?

[Walter Roberson]

If kernel() does not have any inputs, then

temp1 = kernel();
temp2 = kernelII(temp1);
temp3 = kernelIII(temp2);
output = kernelIV(temp3);

Note: I used this form with assigning to variables each time because it can generalize to functions that have multiple outputs, such as

[temp1a, temp1b] = kernel();
temp2 = kernelII(temp1a, temp1b);

In the case where there is only ever one input and one output, you can use

output = kernelIV( kernelIII( kernelII( kernel() ) ) )

[Andrea Daloisio]

thanks a lot walter