Comments on: E14: Assignment 01 https://www.emblogic.com/blog/08/e14-assignment-01/ Embedded System and ARM Training Mon, 07 Oct 2013 04:00:03 +0000 hourly 1 http://wordpress.org/?v=3.9.1 By: sachin https://www.emblogic.com/blog/08/e14-assignment-01/#comment-2006 Fri, 07 Sep 2012 08:03:46 +0000 http://emblogic.org/blog/?p=5137#comment-2006 I have completed assignment 1st but problem in question no 9 and 26.

]]> By: sandesh https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1986 Thu, 06 Sep 2012 14:22:19 +0000 http://emblogic.org/blog/?p=5137#comment-1986 I have completed 1st assignment.

]]> By: sumit lathwal https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1950 Wed, 05 Sep 2012 06:31:01 +0000 http://emblogic.org/blog/?p=5137#comment-1950 24 question are done but problem in question no 11&19

]]> By: nikhil.raheja https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1886 Mon, 03 Sep 2012 08:36:14 +0000 http://emblogic.org/blog/?p=5137#comment-1886 Assignment 1 completed.
Doubt in ques 9,15 & 26.
What is meant by %.8g in ques no. 9?
What is floating point underflow?

]]> By: sandeep.dabas https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1885 Mon, 03 Sep 2012 08:31:39 +0000 http://emblogic.org/blog/?p=5137#comment-1885 22 questions are done bt having problm in 15 que.. and last 4 quetions are remaining…

]]> By: nikhil.raheja https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1884 Mon, 03 Sep 2012 08:28:45 +0000 http://emblogic.org/blog/?p=5137#comment-1884 Assignment 1 completed with doubt in question 9,15 and 26.
What is meant by %.8g?
What is floating point underflow?

]]> By: Sanjeev https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1875 Mon, 03 Sep 2012 03:35:54 +0000 http://emblogic.org/blog/?p=5137#comment-1875 Q 9,10,15 stil not getting it… :(

]]> By: ayush.gupta https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1868 Sun, 02 Sep 2012 21:50:17 +0000 http://emblogic.org/blog/?p=5137#comment-1868 Correction:
Format:%g means use %e or %f, whichever is shorter.
An integer placed between a % sign and the format, acts as a minimum field width specifier and pads the output with spaces.
Suppose:q=44;
printf(“%8d\t”,q);
******44 (replace ‘*’ with spaces)
the output will be display a number with a minimum of 8 characters.

These integers placed Between % and format are called precision modifiers.
Precision modifiers have different meanings depending on format.

1.)When precision modifiers are used with %e, %E, and %f, the precision modifier lets you specify the number of decimal places desired. For example,
%12.6f
will display a floating number at least 12 digits wide, with six decimal places.
2.) When precision modifiers are used with %g and %G, the precision modifier determines the maximum number of significant digits displayed.

All of printf()’s output is right-justified,for left justified output you place a minus sign right after the % sign.

]]> By: ayush.gupta https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1867 Sun, 02 Sep 2012 20:23:27 +0000 http://emblogic.org/blog/?p=5137#comment-1867 Question 15
float a,b;
b=2.0e20;
gives b=200000004008175468544.000000;
but if I use double instead of float
b=2.0e20;
gives b=200000000000000000000.000000;
why the difference?
The float b=2.0e10; it gives b=20000000000.000000;
but if float b=2.0e11; gives b=199999995904.000000;
is this because of float type? but the range of float is 3.4e-38 to 3.4e+38;
please explain.

]]> By: ayush.gupta https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1866 Sun, 02 Sep 2012 18:09:40 +0000 http://emblogic.org/blog/?p=5137#comment-1866 Question 12:
int ten=10,two=2;
printf(“%d minus %d is %d\n”,ten,2,ten-two);
In the printf statement if we use any integer or character (between single quotes ‘a’) in place of 2 we get output as
10 minus 8 is 8; (if we replace 2 by integer)
10 minus ASCII_value is 8; (if we replace 2 by character between single quotes.)
but if we use any number with decimal values (7.28) in place of 2 we get output as:
10 minus 8 is 10;
can anyone explain why this happens?

]]> By: pk8981 https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1855 Sun, 02 Sep 2012 08:52:21 +0000 http://emblogic.org/blog/?p=5137#comment-1855 i am unable to understand the logics used in questions-9,10,12,15,26

]]> By: ayush.gupta https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1848 Sun, 02 Sep 2012 00:51:54 +0000 http://emblogic.org/blog/?p=5137#comment-1848 If void has been specified with main.
int main(void)
Is it necessary to give return 0; statement at the end?
Does main (void) mean that after executing, the main function will not return any value?

]]> By: ayush.gupta https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1847 Sun, 02 Sep 2012 00:36:42 +0000 http://emblogic.org/blog/?p=5137#comment-1847 The use of the ‘#’ character with the %x indicates that the hexadecimal number should be printed with the ’0x’ prefix.
The use of the ‘#’ character with the %o indicates that the octal value should be displayed with a 0 prefix.

]]> By: ayush.gupta https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1846 Sun, 02 Sep 2012 00:06:21 +0000 http://emblogic.org/blog/?p=5137#comment-1846 Question 10
double d=3.2;
int y;
x=d*(y=(int)2.9+1.1/d);
printf(“x=%g\ty=%g\n”,(double)x,(double)y);
after executing the above statement we get y=2 and x=6.4;
But when I complied a new program:

int a;
a=(int)2.9+1.1/3.2;
printf(“a=%g\n”,a);
I got a=0.
If I use “(double)a” instead of “a” in the printf statement I get a=2.
using “(double)a” cast operator shouldn’t I get the value with decimals?
what is the function of “(int)” in expression a=(int)2.9+1.1/3.2 and what value should it return?

]]> By: ayush.gupta https://www.emblogic.com/blog/08/e14-assignment-01/#comment-1844 Sat, 01 Sep 2012 22:36:02 +0000 http://emblogic.org/blog/?p=5137#comment-1844 float a,b,c;
a=100/3;
printf(“a=%f”,a); prints a=33.000000
b=100;
c=b/3;
printf(“c=%f”,c); prints c=33.333332

why are a and c giving different values when a=100/3 and also c=100/3 ?

]]>