Question: When printing a float or double with the %f format specifier, how many decimal digits does printf () output? Does printf () round or truncate

When printing a float or double with the %f format specifier, how many decimal digits does printf () output? Does printf () round or truncate the value?

After reading the description of printf() in Appendix A, write a function that accepts a double argument and prints it out, but only prints three decimal digits.

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