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Even when there is only one variable, using
might make the denominator factorization used
for partial fraction expansion more complete.
Hint: For rational expressions,
faster but less extreme alternative to
Note: See also
numerator over an expanded denominator.
expand(
logarithms and fractional powers regardless of
. For increased distribution of logarithms and
var
fractional powers, inequality constraints might be
necessary to guarantee that some factors are
nonnegative.
expand(
absolute values,
regardless of
Note: See also
angle-sum and multiple-angle expansion.
expr()
MATH/String menu
) ⇒ ⇒ ⇒ ⇒
string
expr(
Returns the character string contained in
an expression and immediately executes it.
Appendix A: Functions and Instructions
propFrac()
for an expanded
comDenom()
also distributes
expression1,
var
[
]
)
also distributes
expression1,
var
[
]
)
, and exponentials,
sign()
.
var
for trigonometric
tExpand()
expression
expand((x^3+x^2ì 2)/(x^2ì 2)) ¸
var
is a
expand(ans(1),x) ¸
.
expand()
ln(2xù y)+‡(2xù y) ¸
expand(ans(1)) ¸
expand(ans(1))|y>=0 ¸
sign(xù y)+abs(xù y)+
expand(ans(1)) ¸
sign(x)øsign(y) + |x|ø|y|+ (
expr("1+2+x^2+x") ¸
as
expr("expand((1+x)^2)") ¸
string
"Define cube(x)=x^3"! funcstr ¸
expr(funcstr) ¸
cube(2) ¸
1
xì ‡2
ln(2ø xø y) + ‡(2ø xø y)
ln(xø y) + ‡2ø ‡(xø y) + ln(2)
ln(x) + ‡2ø ‡xø ‡y + ln(y) + ln(2)
^(2x+y) ¸
e
2ø x+y
+ sign(xø y) + |xø y|
e
"Define cube(x)=x^3"
2ø x
+ x+1
xñ ì 2
1
+
+ x+1
x+‡2
x
)
y
2
e
e
ø
xñ + x + 3
xñ + 2ø x + 1
Done
8
817
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