5 Questions
Which of the following is true about functions?
Functions define specific tasks that can be used at many points in a program.
What can functions do?
Be used as building blocks to create new programs.
Which expression returns the trigonometric sine of $x$?
$\sin(x)$
Which of the following is not included in the math library functions?
$\ln$
What does the function prototype 'double mySqrt(int x);' declare?
Declares a function called mySqrt which takes an integer as an argument and returns a double.
Study Notes
Functions
- Functions can be used to perform a specific task or set of tasks.
- Functions can be reused throughout a program, making it more efficient and organized.
Math Library Functions
- The math library includes functions to perform various mathematical operations, such as trigonometric functions.
- The expression
sin(x)returns the trigonometric sine ofx.
Exclusions in Math Library Functions
-
sqrtfunction is not included in the math library functions by default, but it can be declared separately.
Function Prototypes
- The function prototype
double mySqrt(int x);declares a function namedmySqrtthat takes an integerxas an argument and returns a double value.
Test your knowledge of C++ functions and an introduction to recursion with this multiple-choice quiz based on the book 'C++ How to Program, 10/e, Global Edition'. This quiz covers program components in C++ and includes questions about function definitions, function calls, visibility of function definitions, and function implementation.
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