iDevOS CALC "RND" Command

Generate a random number.

Description

CALC( y, a, "RND" );  // y = rand(a) = random number between 0 and a

This command returns the value y which is a randomly generated number between 0 and a.

Parameters

y

Calculation result.
Parameter type: entity name of a numeric variable (eg U8, S32, FLT3 etc).

a

Input value.
Parameter type: immediate number, or entity name of a numeric variable (eg U8, S32, FLT3 etc).

"RND"

CALC command operator.
Parameter type: immediate string.

Examples

Example 1

VAR(d,  0.0, FLT4);
CALC(d, 10,  "RND"); // eg, d = 6.8936
CALC(d, 10,  "RND"); // eg, d = 4.1276

Example 2

SETUP(RS2) { set="1152NY"; encode=sr; }

VAR(d1, 0.0, FLT4); VAR(a1, 3141.5927, FLT4);
VAR(d2, 0,   S32);  VAR(a2, 64,  S32);
VAR(d3, 0.0, FLT6); VAR(a3, 1.0, FLT4);

LOOP(lp1, FOREVER)
{
  CALC(d1, a1, "RND");
  CALC(d2, a2, "RND");
  CALC(d3, a3, "RND");
  LOAD(RS2, d1, ", ", d2, ", ", d3, "\\0d\\0a");
  WAIT(1000);
}

// An example output on RS2:
3092.9024, 12, 0.900891
488.2170, 50, 0.022285
2385.6688, 52, 0.825658
23.1280, 59, 0.692254
422.8083, 62, 0.173811
553.7351, 59, 0.317508
3042.9832, 26, 0.570716
2385.2283, 26, 0.946548
1744.8570, 29, 0.113906
2302.0624, 51, 0.199057
2993.2816, 28, 0.352398
36.3087, 31, 0.509634
422.8089, 24, 0.123701