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Suppose you're working with the sage console primarily as a calculator, and define some temporary shorthand function, such as,

sage: R = GF(751)
sage: def f(x):
....:    return R(x^3-x+188)

After I've used this f several times, I may want to change the output to something similar, like x^3-x+376. Is there a quick way to recall the definition of f within the console so that I can edit in the minor change, instead of having to define a new function?

Suppose you're working with the sage console primarily as a calculator, and define some temporary shorthand function, such as,

sage: R = GF(751)
sage: def f(x):
....:    return R(x^3-x+188)

After I've used this f several times, I may want to change the output to something similar, like x^3-x+376. Is there a quick way to recall the definition of f within the console so that I can edit in the minor change, instead of having to define a new function?