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.
Function: deftaylor (<f_1>(<x_1>), <expr_1>, ..., <f_n>(<x_n>), <expr_n>) For each function <f_i> of one variable <x_i>, deftaylor defines <expr_i> as the Taylor series about zero. <expr_i> is typically a polynomial in <x_i> or a summation; more general expressions are accepted by deftaylor without complaint.
powerseries (<f_i>(<x_i>), <x_i>, 0) returns the series defined by deftaylor.
deftaylor returns a list of the functions <f_1>, ..., <f_n>. deftaylor evaluates its arguments.
Example:
(%i1) deftaylor (f(x), x^2 + sum(x^i/(2^i*i!^2), i, 4, inf));
(%o1) [f]
(%i2) powerseries (f(x), x, 0);
inf
==== i1
\ x 2
(%o2) > -------- + x
/ i1 2
==== 2 i1!
i1 = 4
(%i3) taylor (exp (sqrt (f(x))), x, 0, 4);
2 3 4
x 3073 x 12817 x
(%o3)/T/ 1 + x + -- + ------- + -------- + . . .
2 18432 307200(%o1) true (%i2)
deftaylor (f(x), x^2 ...
powerseries (f(x), x...
taylor (exp (sqrt (f...
deftaylor (f(x), x^2 ...
powerseries (f(x), x...
taylor (exp (sqrt (f...