Function tabular_number 

pub fn tabular_number(value: f64, width: usize, decimals: usize) -> String

Format a numeric value with fixed-width padding for vertical alignment. Pads with leading spaces so numbers right-align in columns.

Arguments

• value — The numeric value to format
• width — Total column width (including decimal point)
• decimals — Number of decimal places

Examples

assert_eq!(tabular_number(15.2, 8, 1), "    15.2");
assert_eq!(tabular_number(150.0, 8, 1), "   150.0");