- Declarations and Initializations - General Questions
- Declarations and Initializations - Find Output of Program
- Declarations and Initializations - Point Out Errors
- Declarations and Initializations - Point Out Correct Statements
- Declarations and Initializations - True / False Questions
- Declarations and Initializations - Yes / No Questions


Declarations and Initializations - Programming
Q1: By default a real number is treated as aA
float
B
double
C
long double
D
far double
ANS:B - double In computing, 'real number' often refers to non-complex floating-point numbers. It include both rational numbers, such as 42 and 3/4, and irrational numbers such as pi = 3.14159265... When the accuracy of the floating point number is insufficient, we can use the double to define the number. The double is same as float but with longer precision and takes double space (8 bytes) than float. To extend the precision further we can use long double which occupies 10 bytes of memory space. |


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