26.5: Quiz Question Answers - Chapter 5

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Quiz question answers for chapter 5 are as follows:

The assignment operator is = (equal sign).
The exponentiation operator is ** (double asterisks, no space).
An integer variable can be converted to a real with the real conversion function. For example,
```
realVar = real(intVar)
```
An integer variable can be converted to a real with the real conversion function. For example,
```
intVar = int(realVar)
```
Note, in this example precision may be lost since the fractional part is truncated (not rounded).
The two logical constants are .true. and .false. which must include the leading and trailing periods.
Some intrinsic functions are real(), int(), nint(), cos(), sin(), mod(), tan(), and sqrt(). There are more as listed in Appendix D.

The statements are as follows:

x1 = (pi / 6.0) * (3.0 * a**2 + 3.0 * b**2 + c**2)
x2 = -(2.0 * a / c) * cos(b) * sin(b)
x3 = (-b + sqrt(b**2 – 4.0 * a * c)) / (2.0 * a)