Mark Wickens

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REC

[All Models]

Purpose

Converts polar coordinates (r,theta) to rectangular coordinates (x,y).

Format

REC         ( distance r    , angle theta )
              └────┬───┘     └───┬──┘
         Numeric expression  Numeric expression

Example

REC(10,15)

Parameters

• distance r: 0 <= r < 10^100
• angle theta:
  • DEG: -1440 < theta < 1440
  • RAD: -8pi < theta < 8pi
  • GRA: -1600 (grads) < theta < 1600 (grads)

Explanation

1. Converts polar coordinates (r,theta) to rectangular coordinates (x,y). The following relational expressions are used at this time:

   x = r cos theta, y = r sin theta

2. The value of x is automatically assigned to variable X, while y is automatically assigned to variable Y.

See

• POL

Sample Program

10  A=2 : B=30
20  Z=REC(A,B)
30  PRINT X; Y

Converts polar coordinates (2,30) to rectangular coordinates.