45
DIFFERENTIAL CALCULATIONS
Press to enter COMP mode for differential calculation.
To perform a differential calculation, you have to input the expression
in the form of:
differential expression a x
• The differential expression must contain the variable x.
• "a" is the differential coefficient.
• " x" is the change interval of x
(calculation precision).
Example:
To determine the derivative at point x = 10, x = 10
-8
, for
the function f(x) = sin(3x + 30).
! You can leave out the x in the differential expression and the
calculator will automatically substitute a value for x.
! The smaller the entered value x is, the longer the calculation time
will be and the result is more accurate; the bigger the entered
value x is, the shorter the calculation time will be and the result
will be comparatively less accurate.
! Discontinuous points and extreme changes in the value of x can
cause inaccurate results or errors.
! When performing differential calculation with trigonometric
function, select radian (Rad) as the angle unit setting.
! Log
a
b, i–Rand, Rec ( and Pol ( functions can’t join to differential
calculation.
! During the busy calculation, the calculator will display the message
[PROCESSING]
Operation
Display (Lower)
Display (Upper)
Summary of Contents for F-788SG
Page 1: ...F 788SG USER INSTRUCTION ENGLISH E IE 444 ...
Page 4: ...3 DISPLAY 2 LINE DISPLAY Up Arrow Down Arrow ...
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Page 15: ...14 To input the negative vaues use ...
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Page 18: ...17 Mark up and Discount 820 mark up 25 820 have 25 discount ...
Page 19: ...18 ...
Page 20: ...19 F 788SG ...
Page 22: ...21 Pa ...
Page 23: ...22 ...
Page 25: ...24 enter the conversion menu select ft2 convert to m2 calculate the answer ...
Page 26: ...25 To clear the setting refer page 13 ...
Page 30: ...29 be ...
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Page 52: ...51 VECTOR CALCULATIONS ...
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