The Test (Relational) Menu - Texas Instruments TI-86 Manual Book

Relational functions are valid
for two lists of the same
length. When valueA and
valueB are lists, a list of
results calculated element by
element is returned.
The built-in variable defines the step size in calculating
d
mode only) and . The built-in variable
arc(
, and . The value of each must be >0. These factors affect the accuracy of the
fMax( arc(
calculations. As becomes smaller, the approximation typically is more accurate. For
d
example, returns
nDer(A^3,A,5)
The function integral error value is stored to the variable
For and while
arc( fnInt(
, , , ,
evalF( der1( der2( fMin(
You can approximate the fourth derivative at the current value of x with this formula:
nDer(nDer(der2(x^4,x),x),x)

The TEST (Relational) Menu

= = < >
valueA == valueB (equal to) Returns
valueB can be real or complex numbers, lists, vectors, matrices, or strings
valueA < valueB (less than) Returns
valueB; valueA and valueB must be real numbers or lists
valueA > valueB (greater than) Returns
greater than valueB; valueA and valueB must be real numbers or lists
 valueB (less than or equal to) Returns
valueA
is not less than or equal to valueB; valueA and valueB must be real numbers or lists
Chapter 3: Math, Calculus, and Test Operations
defines the tolerance in calculating
tol
if , but returns
75.0001 d=.01
mode is set, these functions are not valid in expression:
dxDer1
, , , and any equation variable, such as
fMax( nDer( seq(
.
- ˜
 ‚ 4
1 if valueA is equal to valueB; returns
1 if valueA is less than valueB; returns
1 if valueA is greater than valueB; returns
if valueA is less than or equal to valueB; returns
1
(in differentiation
nDer( dxNDer
if (Appendix).
75 d=.0001
(Appendix).
fnIntErr
ƒ
0 if not equal; valueA and
0 if valueA is not less than
55
, ,
fnInt( fMin(
.
y1
0 if valueA is not
if valueA
0