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v0.3.0-dev-9 #324

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altavir merged 265 commits from dev into master 2021-05-08 17:16:29 +03:00
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kmath-tensors/src/commonMain/kotlin/space/kscience/kmath/tensors/core/utils.kt
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@ -47,17 +47,17 @@ internal inline fun <T> BufferedTensor<T>.minusIndex(i: Int): Int = minusIndexF
internal inline fun format(value: Double, digits: Int = 4): String {
val ten = 10.0
val approxOrder = ceil(log10(abs(value))).toInt()
val approxOrder = if(value == 0.0) 0 else ceil(log10(abs(value))).toInt()
val order = if(
((value % ten) == 0.0) or
(value == 1.0) or
((1/value) % ten == 0.0)) approxOrder else approxOrder - 1
val lead = value / ten.pow(order)
val leadDisplay = round(lead*ten.pow(digits)) / ten.pow(digits)
val orderDisplay = if(order == 0) "" else if(order > 0) "E+$order" else "E$order"
val valueDisplay = "$leadDisplay$orderDisplay"
val res = if(value < 0.0) valueDisplay else " $valueDisplay"
val fLength = digits + 6
val endSpace = " ".repeat(fLength - res.length)
return "$res$endSpace"