Sharp EL-9900 - Page 82

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Chapter 5: Advanced Calculations — Advanced Keyboard
08 ∑( ∑( expression, initial value, end value [, increment] )
Returns the cumula-
tive sum of a given
expression from an
initial value to an end
value in the specified
increment value (if
not specified, default increment is 1).
09 sec sec
value
Enters a secant
function to be used in
a trigonometric
expression.
10 csc csc value
Enters a cosecant (cosec) function to be used in a
trigonometric expression.
11 cot cot value
Enters a cotangent (cotan) function to be used in a
trigonometric expression.
12 sec
-1
sec
-1
value
Enters an inverse
secant.
13 csc
-1
csc
-1
value
Enters an inverse
cosecant.
14 cot
-1
cot
-1
value
Enters an inverse cotangent.
15 sinh sinh value
Enters a hyperbolic
sine.
16 cosh cosh
value
Enters a hyperbolic cosine.
17 tanh tanh
value
Enters a hyperbolic tangent.