Revision as of 20:49, 13 May 2024 by Admin (Created page with "* The standard way of assigning 3.14 to pi is: <syntaxhighlight lang="C"> double pi; pi = 3.14; </syntaxhighlight> ** Since pi is a constant, good programming convention dictates to make it unchangeable during runtime. Extra credit if you use one of the following two lines: <syntaxhighlight lang="C"> const float pi = 3.14; #define pi 3.14 </syntaxhighlight> * Yes, for example : <syntaxhighlight lang="C"> int a = 67; double b; b = a; </syntaxhighlight> * Yes, but a cast...")
Exercise
May 13'24
Answer
- The standard way of assigning 3.14 to pi is:
double pi;
pi = 3.14;
- Since pi is a constant, good programming convention dictates to make it unchangeable during runtime. Extra credit if you use one of the following two lines:
const float pi = 3.14;
define pi 3.14
- Yes, for example :
int a = 67;
double b;
b = a;
- Yes, but a cast is necessary and the double is truncated:
double a=89;
int b;
b = (int) a;