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So I have some code where I would like to formally plug in a number value into a symbolic function without having sage calculate it.

For example, if I have;

var(x) f(x) = x^2 c = 2

And then I put in f(c), I'd like it to return 2^2 and not 4. I imagine there must be a while to do this, but I can't seem to find it with googling. Any suggestions would be appreciated.

So I have some code where I would like to formally plug in a number value into a symbolic function without having sage calculate it.

For example, if I have;

var(x)
f(x) = x^2 
c = 2
2

So I have some code where I would like to formally plug in a number value into a symbolic function without having sage calculate it.

For example, if I have;

var(x)
f(x) = x^2 
c = 2

And then I put in f(c), I'd like it to return 2^2 and not 4. I imagine there must be a while way to do this, but I can't seem to find it with googling. Any suggestions would be appreciated.