log10(8)

[Shiping Zhang]

In article <3244 at servax0.essex.ac.uk> elzea at sersun0.essex.ac.uk (El-Zein A A) writes:
 
>	My calculator gives me 0.9030899 for log(8),
>	While the following code (which I thought would
>	give me the above value of 0.9030899) prints 
>	-312.770165.
 	.
>	double l;

>	l = log10(8);
>	printf("%f", l);
 
>	Can anybody tell me why.

log10() expects a double as its argument. So use 8.0 instead of 8.

-ping