pkg/plot/format.go


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package plot

import "strconv"

const maxDigits = 7

// Ff formats a float
func Ff(x float64) []rune {
	minExact := strconv.FormatFloat(x, 'g', -1, 64)
	fixed := strconv.FormatFloat(x, 'g', maxDigits, 64)
	if len(minExact) < len(fixed) {
		return []rune(minExact)
	}
	return []rune(fixed)
}

// Fi formats an int
func Fi(x int) []rune {
	return []rune(strconv.FormatInt(int64(x), 10))
}