Next we define a
function
to assign the value 10 sin x
to each x. Enter x:='x';
f:=x->10*sin(x); and then f(1); You may be surprised to see
10 sin(1)
rather than a decimal approximation. To obtain a decimal
approximation,
enter evalf(%); The command "evalf" stands for "floating point evaluation."
To be sure that the
action
of evalf is clear, enter 103751/2053; and then evalf(%);
Now let's evaluate f at
pi/6. First, we need the
value of pi. Enter Pi; Now alter this line to read evalf(Pi); Note that Maple is case sensitive.The "P" must be upper-case
and the "i" must be lower-case. Find a decimal approximation
to f(pi/6).
Find a decimal
approximation
to each of the following: f(2)
and f(pi/3).
