2-8-12

Using the Action Menu

In general, the Fourier transform pair may be defined using two arbitrary constants a and b as shown below.

F(ω) =

 

b

 

 

 

ibωt

 

 

 

 

(2π)1–af(t)e

dt

 

 

 

 

 

 

 

b

 

 

 

 

 

 

 

f(t) =

 

 

 

F(

ω

)e

ibωt

d

ω

(2π)1+a

 

 

 

 

 

Unfortunately, a number of conventions are in widespread use for a and b. For example, (0, 1) is used in modern physics, (1, –1) is used in pure mathematics and systems engineering, (1, 1) is used in probability theory for the computation of the characteristic function, (–1, 1) is used in classical physics, and (0, –2π) is used in signal processing.

Tip

The Advanced Format dialog box can be used to configure Fast Fourier Transform settings. For details, see “Advanced Format Dialog Box” on page 1-9-11.

Using the Calculation Submenu

The [Calculation] submenu contains calculus related commands, such as “diff” (differentiation) and “ ” (integration).

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