maxima-online.org
Online Algebra Calculator
Many of users do not use powerful Maxima computer algebra system for systematic work, but for ad hoc algebraic calculations – equations, functions, matrixes, etc. only. To do this job, it is not useful to download the whole application from a web site.
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![plot2d([f1(x), f2(x), f3(x)], [x, 1/2, 4], [y, -1, 2]);](http://maxima-online.org/plot.html?g=p1926000048.png&t=img&db=r501385053)
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
eq: log(x); (%o1) log(x) (%i2) diff(eq, x); 1 (%o2) - x (%i3)
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)
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