### Related

##### functions-numer

49! / (6! * (49-6)!),...

50! / (5! * (50-5)!),...

celk:49;

Calculate

?functions;

Calculate

? functions;

Calculate

##### functions-numer

49! / (6! * (49-6)!),...

50! / (5! * (50-5)!),...

celk:49;

Calculate

f(x):=x^2;

functions;

f(2);

Calculate

f(x):=x^2;

functions;

f(2);

Calculate

##### functions-numer

49! / (6! * (49-6)!),...

50! / (5! * (50-5)!),...

celk:49!;

Calculate

##### functions-numer

49! / (6! * (49-6)!),...

50! / (5! * (50-5)!),...

celk:49;

Calculate

##### functions-numer

49! / (6! * (49-6)!),...

50! / (5! * (50-5)!),...

celk:49;

Calculate

##### functions-linsolve

eq1:x*4+y-2=y;

eq2:x+2=y;

linsolve([eq1,eq2],[x...

Calculate

### functions

Run Example
```(%i1)f(x):=x^2;
2
(%o1)                             f(x) := x
(%i2) functions;
(%o2)                               [f(x)]
(%i3) f(2);
(%o3)                                  4
(%i4) ```
Run Example
```49! / (6! * (49-6)!),numer;
(%o1)                              13983816
(%i2) 50! / (5! * (50-5)!),numer;
(%o2)                               2118760
(%i3) celk:49!;
(%o3)   608281864034267560872252163321295376887552831379210240000000000
(%i4) tipov:6;
(%o4)                                  6
(%i5) losov:7!;
(%o5)                                5040
(%i6) P(x):=(((celk-tipov)/(losov-x))*(tipov/x))/(celk/losov);
celk - tipov  tipov
------------ (-----)
losov - x      x
(%o6)                    P(x) := --------------------
celk
-----
losov
(%i7) functions;
(%o7)                               [P(x)]
(%i8) P(6),numer;
(%o8)                          1.00119189511323
(%i9) ```
Run Example
```F(x):=if (x<
=0) then 0 else if (x<
=1) then x^2 else 1;
2
(%o1)      F(x) := if x <= 0 then 0 else (if x <= 1 then x  else 1)
(%i2) diff(x^2, x);
(%o2)                                 2 x
(%i3) f(x):=if (x<
=0) then 0 else if (x<
=1) then 2*x else 0;
(%o3)      f(x) := if x <= 0 then 0 else (if x <= 1 then 2 x else 0)
(%i4) functions;
(%o4)                            [F(x), f(x)]
(%i5) plot2d(F(x), [x, -1, 2]);
plot```

### Related Help

Help for Functions