### Related

##### notequal

[notequal (2*z, 2*z -...

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##### notequal

[not equal (1+2, 1+4)...

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##### notequal

[notequal (2*z, 2*z -...

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##### notequal

[not equal (2*z, 2*z)...

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notequal(5,3);

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notequal(5,3);

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##### notequal

[not equal (2*z, 2*z)...

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? notequal;

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notequal(5,3);

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##### notequal

discr:0;

aaa:1;

if discr>0 and is(...

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### notequal

Run Example
```(%i1)eq1:x*4+y-2=y;
(%o1)                           y + 4 x - 2 = y
(%i2) eq2:x+2=y;
(%o2)                              x + 2 = y
(%i3) linsolve([eq1,eq2],[x,y]);
1      5
(%o3)                           [x = -, y = -]
2      2
(%i4) assume(notequal(n, -1));
(%o4)                         [notequal(n, - 1)]
(%i5)  	integrate(x^n, x);
n + 1
x
(%o5)                               ------
n + 1
(%i6) facts();
(%o6)                         [notequal(n, - 1)]
(%i7) forget(notequal(n, -1));
(%o7)                         [notequal(n, - 1)]
(%i8) assume(a>
0);
(%o8)                               [a > 0]
(%i9) integrate(1/(x^2+a), x);
x
atan(-------)
sqrt(a)
(%o9)                            -------------
sqrt(a)
(%i10) integrate(log(cos(x^2)), x, 0, 1);
1
/
[           2
(%o10)                        I  log(cos(x )) dx
]
/
0
(%o11)        [- 0.11151210243615, 3.3310015826528369E-11, 21, 0]
(%i12) ```
Run Example
```eq1:x*4+y-2=y;
(%o1)                           y + 4 x - 2 = y
(%i2) eq2:x+2=y;
(%o2)                              x + 2 = y
(%i3) linsolve([eq1,eq2],[x,y]);
1      5
(%o3)                           [x = -, y = -]
2      2
(%i4) assume(notequal(n, -1));
(%o4)                         [notequal(n, - 1)]
(%i5)  	integrate(x^n, x);
n + 1
x
(%o5)                               ------
n + 1
(%i6) facts();
(%o6)                         [notequal(n, - 1)]
(%i7) forget(notequal(n, -1));
(%o7)                         [notequal(n, - 1)]
(%i8) assume(a>
0);
(%o8)                               [a > 0]
(%i9) integrate(1/(x^2+a), x);
x
atan(-------)
sqrt(a)
(%o9)                            -------------
sqrt(a)
(%i10) ```
Run Example
```eq1:x*4+y-2=y;
(%o1)                           y + 4 x - 2 = y
(%i2) eq2:x+2=y;
(%o2)                              x + 2 = y
(%i3) linsolve([eq1,eq2],[x,y]);
1      5
(%o3)                           [x = -, y = -]
2      2
(%i4) assume(notequal(n, -1));
(%o4)                         [notequal(n, - 1)]
(%i5)  	integrate(x^n, x);
n + 1
x
(%o5)                               ------
n + 1
(%i6) facts();
(%o6)                         [notequal(n, - 1)]
(%i7) ```

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