### Related

##### defint-ratsimp-solve

ratsimp(((a+b)/2-a)/(...

defint(c*(1+x),x,-1,0...

sys: [ (1-a)/(b-1)=1/...

Calculate

##### defint-laplace-sin

eq1:sin(w*x);

eq2:defint(eq1,x,a-b,a);

laplace(eq2,a,s);

Calculate

##### defint-inf-log

defint(((log(x+1))^2)...

Calculate

##### defint-exp-pi-sqrt

f(x):=1/(5*sqrt(2*%pi...

defint(f(x),x,1,3);

Calculate

##### defint-laplace-sin

eq1:sin(x);

eq2:defint(eq1,x,a,a-b);

laplace(eq2,x,s);

Calculate

##### defint-sin

ndefint (sin(x^2),x,0...

Calculate

? defint;

Calculate

##### defint-sin

eq1:sin(x);

defint(eq1,x,a,b);

Calculate

##### defint

defint(1/(x+2*(x-1)^(...

Calculate

##### defint

eq1:gleichung=x;

defint(eq1, x, 0, 5);

Calculate

### defint

Run Example
```(%i1)defint(x,x,a-b,a);
2    2            2
a    b  - 2 a b + a
(%o1)                        -- - ---------------
2           2
(%i2) eq1:sin(w*x);
(%o2)                              sin(w x)
(%i3) eq2:defint(eq1,x,a-b,a);
cos((a - b) w)   cos(a w)
(%o3)                      -------------- - --------
w             w
(%i4) laplace(eq2,a,s);
w sin(b w) + s cos(b w)        s
(%o4)                ----------------------- - -----------
2    2              2    2
w (w  + s )         w (w  + s )
(%i5) ```
Run Example
```assume (x*y>
0);
(%o1)                              [x y > 0]
(%i2) f(x,y):=defint(%e^(-t^2),t,0,(x*y));
2
- t
(%o2)                f(x, y) := defint(%e    , t, 0, x y)
(%i3) sol:solve(rhs(%o1));

solve: variable list is empty, continuing anyway.
(%o3)                                 all
(%i4) ```
Run Example
```ldefint(1/e^(2*x),x,0,inf);
1
limit    ----
x -> inf  2 x
1                e
(%o1)                      -------- - -------------
2 log(e)     2 log(e)
(%i2) integrate(sin(x)*sin(x-%pi/4)/(e^(2*x-sin(x)^2)),x,0,inf);
inf
/        2
[     sin (x) - 2 x                %pi
(%o2)             I    e              sin(x) sin(x - ---) dx
]                                   4
/
0
(%i3) ```

Help for Defint