How to get the actual value?
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Hi I am a student.When I do my homework,i encounter a problem.I can not get the actual value in VisualC++. The question is how to get 95.123 raised by 12. Maybe I haven't explained my mean.Sorry about my poor English! Thanx first! -- modified at 1:49 Thursday 27th October, 2005
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Hi I am a student.When I do my homework,i encounter a problem.I can not get the actual value in VisualC++. The question is how to get 95.123 raised by 12. Maybe I haven't explained my mean.Sorry about my poor English! Thanx first! -- modified at 1:49 Thursday 27th October, 2005
:doh: :confused: What are you speaking about ?? What means " 95.123 's 12th power " ?? And what are you trying to do exactly and what is the exact problem encoutered ? Try to be more specific.
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Hi I am a student.When I do my homework,i encounter a problem.I can not get the actual value in VisualC++. The question is how to get 95.123 raised by 12. Maybe I haven't explained my mean.Sorry about my poor English! Thanx first! -- modified at 1:49 Thursday 27th October, 2005
ShiningStarPxx wrote:
The question is how to get 95.123 's 12th power.
Do you mean 95.12312 instead? Even using an
unsigned long double, you'd get something like 5.4881562051773182e+023. You might could get a bit more precision by using the DECIMAL data type.
"Take only what you need and leave the land as you found it." - Native American Proverb
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ShiningStarPxx wrote:
The question is how to get 95.123 's 12th power.
Do you mean 95.12312 instead? Even using an
unsigned long double, you'd get something like 5.4881562051773182e+023. You might could get a bit more precision by using the DECIMAL data type.
"Take only what you need and leave the land as you found it." - Native American Proverb
Thank you first! But i can not catch your means.Would you like to explain it with a sample code.
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:doh: :confused: What are you speaking about ?? What means " 95.123 's 12th power " ?? And what are you trying to do exactly and what is the exact problem encoutered ? Try to be more specific.
The question is how to get 95.123 raised by 12. Maybe I haven't explained my means.Sorry about my poor English!
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The question is how to get 95.123 raised by 12. Maybe I haven't explained my means.Sorry about my poor English!
You can use the
double pow(double,double);for that purpose. Don't forget to include math.h at the top of your file ;). -
Thank you first! But i can not catch your means.Would you like to explain it with a sample code.
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#include #include void main( void ) { double x = 2.0, y = 3.0, z; z = pow( x, y ); printf( "%.1f to the power of %.1f is %.1f\n", x, y, z ); } Output 2.0 to the power of 3.0 is 8.0
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Thank you first! But i can not catch your means.Would you like to explain it with a sample code.
On paper, 95.12312 is 548815620517731830194541.89902534. However, that number is too big to fit in any type, including an
unsigned long double. It would only give you something like 5.4881562051773182e+023 (which equates to 548815620517731820000000.0). Notice the loss of precision. ADECIMALtype may get you a bit more precision.
"Take only what you need and leave the land as you found it." - Native American Proverb