Rebell SC2080 - Page 39

Sequence of mathematical operations
Calculation of every mathematical operation is performed left to right and in the
following sequence:
1) Calculation of the content of brackets.
2) Functions with brackets:
POL, REC
∫, d/dx, ∑
P(, Q(, R(
sin, cos, tan, sin
–1
, cos
–1
, tan
–1
, sinh, cosh, tanh, sinh
–1
, cosh
–1
, tanh
–1
, log,
ln, √,
3
√, 10
x
, e
x
Round, Abs, arg, Conjg
Not, Neg
Det, Trn
3) Functions preceding values, roots, powers, such as x
2
, x
3
, x
–1
, x!, DMS, °, r,
g, y
x
,
x
√, %
4) Fractions.
5) Negation (–).
6) Statistic estimates of calculated values: y^, x^, x1^, x2^.
Metric conversions commands: cm→in.
7) nPr, nCr
Symbol of complex polar form.
8) ×, ÷.
Multiplication sign may be omitted before p, e, variable and function in
parentheses, such as: 3p, 5B.
9) +, –.
10) Logical AND: and
11) Logical OR, XOR, XNOR: or, xor, xnor
Accuracy of calculations and capacity
Output capacity: up to 10 digits.
Internal capacity of calculation: up to 15 digits.
10 digits or a 10-digit local base and the exponent of 10
±99
are usually sufcient.
Ranges of input values for function and accuracy
Function Range of input
sinx DEG 0≤|x|<9x10
9
RAD 0≤|x|<157079632.7
GRA 0≤|x|<1x10
10
cosx DEG 0≤|x|<9x10
9
RAD 0≤|x|<157079632.7
GRA 0≤|x|<1x10
10
tanx DEG same as sinx, except if |x|=(2n–1) x 90.
RAD same as sinx, except if |x|=(2n–1) x
p/2.
GRA same as sinx, except if |x|=(2n–1) x 100.
sin
–1
x
0≤|x|≤1
cos
–1
x
16–EN