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When performing integral calculations
Integral calculations require a long calculation time, depending on the
integrands and subintervals input. During calculation, ‘calculating!’ will be
displayed. To cancel calculation, press j. Note that there will be greater
integral errors when there are large fluctuations in the integral values during
minute shifting of the integral range and for periodic functions, etc., where
positive and negative integral values exist depending on the interval.
For the former case, make the integral interval as small as possible. For the
latter case, separate the positive and negative values.
Following these tips will provide calculations results with greater accuracy
and will also shorten the calculation time.
Chapter 3: Scientific Calculations
y
x
b
xx
xx
a
0
13
2
y
a
b
x
x
x
x
x
1
0
2
3
j ; X A - 5
{
n = 100 2 e 8 e e
∫
8
2
(x
2
–5)dx
∫
dx = ?
n = 10 e e e 10 e
∫
dx = ?
a=
z
0.
b= 0.
n= 100.
≈Œ-5
∫dx=
138.
≈Œ-5
∫dx=
138.
Example Key operations Result