谁能讲讲 bc 的用法吗

dbcat

for eg:

1. [simone@localhost simone]$ bc
   
2. bc 1.06
   
3. Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc.
   
4. This is free software with ABSOLUTELY NO WARRANTY.
   
5. For details type `warranty'.
   
6. scale=10
   
7. 3 / 5
   
8. .6000000000
   
9. scale=15
   
10. 3 / 7
    
11. .428571428571428
    
12. sum=0
    
13. for(x=0;x<101;x++){
    
14. sum=sum+x;
    
15. }
    
16. sum
    
17. 5050
    
18. define f(x){
    
19. return(2 * x + 5)
    
20. }
    
21. f(2)
    
22. 9
    
23. quit
    
24. [simone@localhost simone]$

复制代码

Go on.......