w****n
发帖数: 54 | 1 This is the declaration of my function, a constructor actually:
typedef long double number;
Ode::Ode(const number xi, const number xt, const number h, const number y0,
Function& ff) ;
Then I used this function:
Ode tryode(0,10,0.1,0,f);
But when I used gdb to see what happens there, I see h=0.
1000000000000000055511151231257827, not exactly 0.1. Is that due to the
accuracy of the computer?
Thanks | w****n
发帖数: 54 | 2 Please. Even it's a supid question, pleas help me. Many thanks. | t****t
发帖数: 6806 | 3 yes, of course.
y0,
【在 w****n 的大作中提到】
: This is the declaration of my function, a constructor actually:
: typedef long double number;
: Ode::Ode(const number xi, const number xt, const number h, const number y0,
: Function& ff) ;
: Then I used this function:
: Ode tryode(0,10,0.1,0,f);
: But when I used gdb to see what happens there, I see h=0.
: 1000000000000000055511151231257827, not exactly 0.1. Is that due to the
: accuracy of the computer?
: Thanks
| f********r
发帖数: 50 | 4 en, so called round off error in error analysis |
|
