STEP

 

The STEP function interpolates between two markers using a cubic polynomial. Generally, this function is used when linking two markers in a gradual curve.

 

Format

 

 

Arguments definition

The variable for the defined STEP function

     Generally, this variable is time or a function that returns a real number.

The starting point of the STEP function.

The initial value for the input variable (within the range of xx0)

The ending point of the STEP function

The initial value for the input variable (within the range of xx1)

 

Formulation

 

Example

STEP(time, 1.0, 0.0, 4.0, 1.0)

     x = time: Independent variable

     x0 = 1.0: X-value at which the STEP function begins

     h0 = 0.0: Initial value of the STEP function

     x1 = 4.0: X-value at which the STEP functions ends

     h1 = 1.0: Final value of the STEP function

 

Figure 1  Scope result using the STEP function