a: b:

The following shows the calculation formula used for Σ calculations. Σ( f (x), x, a, b) = f (a) + f (a+1) + .... + f (b)

A Syntax and Input

Σ( f (x), x, a, b)f (x): Function of x (parameter variable specified below)x: Parameter variable (Any letter from A through Z)

• If the variable name you specify here does not match the variable name used within the function of x, the variable in the function will be treated as a

constant.

Start point of calculation range End point of calculation range

a and b are integers in the range of –1 × 1010< a < b < 1 × 1010.The step for this calculation is fixed as 1.Example: Σ( X + 1, X, 1, 5) = 20Bz – {MATH}4(Σ()S0(X)+1ea0(X)e1e5E

b

z – {MATH}4(Σ()S0(X) +1,a0(X),1,5)E

ARemarks

Use of Σ( is supported in the COMP, SD, REG, and EQN Modes only.

The following functions cannot be input for the f(x), a, and b parameters: (, d/dx(, d 2/dx2(, Σ(. In addition, the Pol( and Rec( functions, and the random number functions cannot be input for the f(x) parameter.

You can interrupt an ongoing Σ calculation operation by pressing o.

k Coordinate Conversion (Rectangular Polar)

Pol(, Rec(

Your calculator can convert between rectangular coordinates and polar coordinates.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

o

 

 

 

 

o

 

Rectangular Coordinates (Rec)

 

Polar Coordinates (Pol)

E-47