Sharp el-9950

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Chapter 2: Operating the Graphing Calculator
Calculations Using MATH Menu Items
TheMATHmenucontainsfunctionsusedformoreelaboratemathconceptssuchas
trigonometry,logarithms,probability,andmathunit/formatconversions.TheMATHmenu
items may be incorporated into your expressions.
The degree and radian systems are two of the basic methods
ofmeasuringangles.Thereare360degreesinacircle,and“2-
pi”radians.1degreeisequaltopi/180radians.“Then,what’sthis
pi?”,youmayask.Pi,ortouseitssymbol“
π
”,istheratioofthe
circumference of a circle to its diameter. The value of
π
is the same
foranycircle“3.14...”,anditisbelievedtohaveaninnitenumber
of digits beyond the decimal point.
Note: Pleaseuse"Degree"(DEG)foranglevaluesandnotGRADbecause
thisisusedtorepresentGrads,whereoneturncomprises400Grads.
A CALC
Containssub-menutoolsforadvancedcalculations.
01 log
2
log
2
value
Entersabase-2logarithm(log
2
).
02 2
X
2
value
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.
04 fmax( fmax(equation, lower limit of x, upper limit of x)
ReturnthevalueofvariablexwhentheequationYhasthe
maximum value within the specified range of x.
05 d/dx( d/dx(equation, value of x [, tolerance])
Returnsderivativeofequation
YatthespeciedXvalueusing
the tolerance (if not specified,
default value is 1E–5).
A Note about
Degrees and
Radians