ABS(x)Return absolute (unsigned) value. (macro) fabs(x)Return absolute (unsigned) value. (Function) ceil(x)Rounds up a "double" variable floor(x)Rounds down (truncates) a "double" variable. exp(x)Find exponent log(x)Find natural logarithm log10(x)Find logarithm to base 10 pow(x,y)Raise x to the power y sqrt(x)Square root sin(x)Sine of (x in radians) cos(x)Cosine of (x in radians) tan(x)Tangent of (x in radians) asin(x)Inverse sine of x in radians acos(x)Inverse cosine of x in radians atan(x)Inverse tangent of x in radians atan2(x,y)Inverse tangent of x/y in radians sinh(x)Hyperbolic sine cosh(x)Hyperbolic cosine tanh(x)Hyperbolic tangent
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History Of C..
In the beginning was Charles Babbage and his Analytical Engine, a machine
he built in 1822 that could be programmed to carry out different computations.
Move forward more than 100 years, where the U.S. government in
1942 used concepts from Babbage’s engine to create the ENIAC, the first
modern computer.
Meanwhile, over at the AT&T Bell Labs, in 1972 Dennis Ritchie was working
with two languages: B (for Bell) and BCPL (Basic Combined Programming
Language). Inspired by Pascal, Mr. Ritchie developed the C programming
language.
My 1st Program...
#include
#include
void main ()
{
clrscr ();
printf ("\n\n\n\n");
printf ("\t\t\t*******Pankaj *******\n");
printf ("\t\t\t********************************\n");
printf ("\t\t\t\"Life is Good...\"\n");
printf ("\t\t\t********************************");
getch ();
}
Next Step...
#include
#include
void main ()
{
clrscr ();
printf ("\n\n\n\n\n\n\n\n");
printf ("\t\t\t --------------------------- \n\n");
printf ("\t\t\t | IGCT, Info Computers, INDIA | \n\n");
printf ("\t\t\t --------------------------- ");
getch ();
}
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