### Related

##### cot-plot2d

plot2d (cot(x), [x, -...

Calculate

##### cot-do-equal-errormsg-false-is-limit-plot2d-ratprint-solvetrigwarn

solvetrigwarn:false;

ratprint:false;

errormsg:false;

Calculate

##### cot-exponentialize-tan

f:tan(cot(1/2)+cot(1/...

epfc:exponentialize(f);

Calculate

##### cot-coth-residue

residue (s/(s**2+a**2...

residue ((%pi*cot(%p...

coth(%pi*%i);

Calculate

##### cot-tan-trigexpand

trigexpand(tan(2*x));

trigexpand(cot(2*x));

Calculate

##### cot-diff

Ett(upt,ur):=1/a*(upt...

Epp(ut,ur):= 1/a * (u...

L(upt,ur,ut) := Eh/(2...

Calculate

##### cot-residue

residue ((pi*cot(pi*z...

residue ((pi*cot(pi*...

Calculate

##### cot-residue

residue(cot(pi*z)/z^2...

Calculate

##### cot-residue

residue ((pi*cot(pi*z...

residue ((pi*cot(pi*...

Calculate

##### cot-sqrt

r: 10;

r1:pi/8;

a : ((2*r*(1/cot(3*π/...

Calculate

### cot

Run Example
```(%i1)Ett(upt,ur):=upt - ur/a;
ur
(%o1)                      Ett(upt, ur) := upt - --
a
(%i2) Epp(ut,ur):= 1/a * (ut * cot(t) - ur);
1
(%o2)                  Epp(ut, ur) := - (ut cot(t) - ur)
a
(%i3) L(upt,ur,ut) := Eh/(2*(1-nu^2)) * (Ett(upt,ur)^2 +Epp(ut,ur)^2 + 2 * nu1* Ett(upt,ur) * Epp(ut,ur) - Srr * ur);
Eh          2               2
(%o3) L(upt, ur, ut) := ----------- (Ett (upt, ur) + Epp (ut, ur)
2
2 (1 - nu )
+ 2 nu1 Ett(upt, ur) Epp(ut, ur) + (- Srr) ur)
(%i4) ```
Run Example
```integrate((2*10/PI*atan(cot(PI*50*t)))^2,t,0,10);
2
2 cos(500 PI)                 cos(500 PI)    2500000 PI
400 (10 atan (-----------) + 5000 PI atan(-----------) + -----------)
sin(500 PI)                 sin(500 PI)         3
(%o1) ---------------------------------------------------------------------
2
PI
(%i2) ```
Run Example
```sin((%pi)/6);
1
(%o1)                                  -
2
(%i2) cos((%pi)/6);
sqrt(3)
(%o2)                               -------
2
(%i3) tan((%pi)/6);
1
(%o3)                               -------
sqrt(3)
(%i4) sec((%pi)/6);
2
(%o4)                               -------
sqrt(3)
(%i5) cot((%pi)/6);
(%o5)                               sqrt(3)
(%i6) asin((%pi)/6);
%pi
(%o6)                              asin(---)
6
(%i7) acos((%pi)/6);
%pi
(%o7)                              acos(---)
6
(%i8) atan((%pi)/6);
%pi
(%o8)                              atan(---)
6
(%i9) asec((%pi)/6);
%pi
(%o9)                              asec(---)
6
(%i10) acot((%pi)/6);
%pi
(%o10)                             acot(---)
6
(%i11) ```

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