PHP 浮点数拼图

Question

How do i code below question in PHP ?

To print the curve data to the screen by positioning it with spaces, within a display area 51 chars wide.

You have the following 39 floats as source data.

14686.744, 14687.067, 14687.363, 14687.633, 14687.958, 14688.257,
14688.530, 14688.777, 14688.997, 14689.209, 14689.419, 14689.614, 
14689.792, 14689.928, 14690.047, 14690.526, 14691.351, 14692.560, 
14693.897, 14695.045, 14696.147, 14697.109, 14697.708, 14697.563,
14696.793, 14696.089, 14695.254, 14694.135, 14693.018, 14691.445, 
14689.647, 14688.055, 14686.720, 14685.607, 14684.638, 14683.800,
14683.081, 14682.794, 14682.572

Notes:

• The differences between floats is very small.

• Strip away the minimum value and only display the variance between highest and lowest values.

• Space the values to fill the display area of 51 chars wide.

• Echo the row number at the start of each line.

• The correct output looks like this:

OUTPUT

0               .
1                .
2                 .
3                  .
4                   .
5                    .
6                     .
7                     .
8                      .
9                       .
10                       .
11                        .
12                        .
13                         .
14                          .
15                             .
16                                 .
17                                     .
18                                         .
19                                            .
20                                                .
21                                                  .
22                                                 .
23                                               .
24                                            .
25                                          .
26                                      .
27                                  .
28                             .
29                       .
30                  .
31              .
32          .
33       .
34    .
35  .
36 .
37.
38.

Answer 1

I guess it would be something like: Convert the numbers to percentages, so the lowest float = 0 and the highest = 100.

then take each percentage as a percentage of the width (which is 51). Eg. with 10% would be "51 * 0.10 = 5.1". Make it an int (floor) and call it spacing (perhaps you need to subtract 1 from the value.).

Then print as many spaces as defined by "spacing" and append the dot + newline.