Sharp EL-9900 Operation Manual page 81

Chapter 5: Advanced Calculations — Advanced Keyboard
X value
02 2 2
Raises 2 to a power. Sets the cursor to exponent.
03 fmin( fmin( equation, lower limit of x, upper limit of x )
Returns the value of
variable x when the
equation Y has the
minimum value within
the specified range of
x.
fmax(equation, lower limit of x, upper limit of x )
04 fmax(
Return the value of variable x when the equation Y has
the maximum value within the specified range of x.
d/dx( equation, value of x [, tolerance] )
05 d/dx(
Returns derivative of
equation Y at the
specified X value
using the tolerance (if
not specified, default
value is 1E–5).
06 ∫ ∫ equation, lower limit, upper limit [, tolerance] dx
Calculates an integral
value of equation Y
from the lower limit to
the upper limit using
the specified toler-
ance (if not specified,
default value is 1E–5). Use in conjunction with the 07
dx sub-menu item.
• Press the keys as follows in the Equation edit mode.
M A 0 6 2 { 8 ' (
X a 3 ' - 0.5 X y +
6 ) , 0.001 M A 0 7
E
07 dx Enters a differential " dx " in an integration expression.
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