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log

a: (100*log(1.15)*1.1...

b: (13.98*1.15^x);

(a - b) / 1.15^x;

Calculate

log

log(e)/1;

Calculate

log

log (%e);

Calculate

log-plot2d
plot2d (f(x), [x, 0, 10]);

f(x):=x*log(2+(.1)/(x));

plot2d (f(x), [x, 0, ...

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log-sin

f(x):=e+x+x**10;

f(1/2);

f(x):=(3*x**4*sin(1/x...

Calculate

log-ratsimp-sum

a : 2;

b : 4;

c : 8;

Calculate

log

simplify(e^(log(10)*x));

Calculate

log

log((1/4/1.2)^0.1);

Calculate

log-sum

a : 2;

b : 4;

c : 8;

Calculate

log-plot3d
plot3d(eq1, [x,0.1,0.9], [y,0.1,0.9]);

eq1:y*log(y/x)+(1-y)*...

plot3d(eq1, [x,0.1,0....

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log

Run Example
(%i1)f1(xi):= 1-xi^2;
                                               2
(%o1)                          f1(xi) := 1 - xi
(%i2) f2(xi):= log(1/xi);
                                             1
(%o2)                          f2(xi) := log(--)
                                             xi
(%i3) integrate(xi*f1(xi),xi,k,1);
                                  4      2
                                 k  - 2 k  + 1
(%o3)                            -------------
                                       4
(%i4) integrate(xi*f2(xi),xi);
                                 2     2
                               xi    xi  log(xi)
(%o4)                          --- - -----------
                                4         2
(%i5) 
Run Example
e1: 2*(2*a*log(y)+a*log(x));
(%o1)                      2 (2 a log(y) + a log(x))
(%i2) logcontract(e1);
                                        2  4
(%o2)                            a log(x  y )
(%i3) e2:-4*log(4)/3  + log(3)+ 2 *log(2) + 1;
                        4 log(4)
(%o3)                 - -------- + log(3) + 2 log(2) + 1
                           3
(%i4)  logcontract(e2);
                                      4 log(4)
(%o4)                       log(12) - -------- + 1
                                         3
(%i5) 
Run Example
diff(log(%e));
(%o1)                                  0
(%i2) 

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