7/26/2019 Backup calcus

1/2

> a:=exp(x)/2;

:=a1

2ex

>b:= 15*ln(x^2);

:=b 15 ( )ln x2

> fsolve(a=b,x);-1.006112566

> evalf(a=b);

=0.5000000000 ex

15. ( )ln x2

> a=b;

=

1

2ex

15 ( )ln x2

> c:=a=b;

:=c =1

2ex

15 ( )ln x2

> solve(c,x);

( )RootOf e_Z

30 ( )ln _Z2

> fsolve(c,x);

-1.006112566

> d:=b-a;

:=d 15 ( )ln x2

1

2ex

> int(d,x=0..4.5);

23.54188291

> %/2;

11.77094146

> int(d,x=0..u);

+

1

215 ( )ln u

2u 30u

1

2eu

> fsolve(%,u);

5.416292883

> int(d,x=1..4.5);

54.40102383

> e:=int(d,x=1..u)=(int(d,x=1..4.5))/2;

:=e =+ + 301

2e 15 ( )ln u

2u 30u

1

2eu

27.20051192

> fsolve(%,u);

5.472653137

7/26/2019 Backup calcus

2/2

> (int(d,x=1..4.5))/2

> ;

27.20051192

>m:= int(d,x=1..p)=(int(d,x=1..4.5))/2;

:=m =+ + 301

2e 15 ( )ln p

2p 30p

1

2ep

27.20051192

> fsolve(m,p);

5.472653137

> solve(m,p);Warning, solutions may have been lost

> solve(m,p);Warning, solutions may have been lost

> evalf(m,p);Error, invalid input: evalf expects its 2nd argument, n, to be of type posint, but

received p

>