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Querry...   Message List  
Reply | Forward Message #127 of 516 |
Hello, I have some problem. Please have a look at and give me some
advices...
Thanks.


Source code---------------------------

DOUBLE PRECISION X,Y
X=-8.D0
Y=1.D0/3.D0
WRITE (*,*) 'The value of X**Y=',DEXP(Y*DLOG(X))
END

Result_________________________________________________

run-time error M6201: MATH
- log: DOMAIN error
Image PC Routine Line Source
Text1.exe 004076B9 Unknown Unknown Unknown
Text1.exe 004074D1 Unknown Unknown Unknown
Text1.exe 00407671 Unknown Unknown Unknown
Text1.exe 00409908 Unknown Unknown Unknown
Text1.exe 004261D0 Unknown Unknown Unknown
Text1.exe 00423C2A Unknown Unknown Unknown
Text1.exe 004010A3 Unknown Unknown Unknown
Text1.exe 0042EEB9 Unknown Unknown Unknown
Text1.exe 00422E74 Unknown Unknown Unknown
KERNEL32.dll 77E692A6 Unknown Unknown Unknown

Incrementally linked image--PC correlation disabled.





Fri Aug 9, 2002 3:14 am

junseok_74
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Message #127 of 516 |
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Hello, I have some problem. Please have a look at and give me some advices... Thanks. Source code--------------------------- DOUBLE PRECISION X,Y X=-8.D0 ...
junseok_74
Offline Send Email
Aug 9, 2002
3:14 am

Your program looks OK. Usually log(-ve) is undefined quantity. You make x +ve and then check. ... Result_________________________________________________ ... ...
Raj Gupta
rajgupta121
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Aug 9, 2002
4:23 am

You can't take the logarithm of a negative number using REAL or DOUBLE PRECISION arithmetic. It doesn't exist.You can take the logarithm of a negative quantity...
demiduet
Offline
Aug 9, 2002
8:08 am
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