diff --git a/kmath-tensors/src/commonMain/kotlin/space/kscience/kmath/tensors/core/utils.kt b/kmath-tensors/src/commonMain/kotlin/space/kscience/kmath/tensors/core/utils.kt
index 40d40b593..0b2b5c0df 100644
--- a/kmath-tensors/src/commonMain/kotlin/space/kscience/kmath/tensors/core/utils.kt
+++ b/kmath-tensors/src/commonMain/kotlin/space/kscience/kmath/tensors/core/utils.kt
@@ -1,6 +1,5 @@
 package space.kscience.kmath.tensors.core
 
-import space.kscience.kmath.misc.UnstableKMathAPI
 import space.kscience.kmath.nd.as1D
 import space.kscience.kmath.samplers.GaussianSampler
 import space.kscience.kmath.stat.RandomGenerator
@@ -72,7 +71,7 @@ internal inline fun format(value: Double, digits: Int = 4): String {
     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 valueDisplay = "$leadDisplay$orderDisplay"
     val res = if(value < 0.0) valueDisplay else " $valueDisplay"
     val fLength = digits + 6
     val endSpace = " ".repeat(fLength - res.length)
diff --git a/kmath-tensors/src/commonTest/kotlin/space/kscience/kmath/tensors/core/TestDoubleTensor.kt b/kmath-tensors/src/commonTest/kotlin/space/kscience/kmath/tensors/core/TestDoubleTensor.kt
index ddcf0369c..f950dfce3 100644
--- a/kmath-tensors/src/commonTest/kotlin/space/kscience/kmath/tensors/core/TestDoubleTensor.kt
+++ b/kmath-tensors/src/commonTest/kotlin/space/kscience/kmath/tensors/core/TestDoubleTensor.kt
@@ -1,8 +1,10 @@
 package space.kscience.kmath.tensors.core
 
+import kotlinx.coroutines.InternalCoroutinesApi
 import space.kscience.kmath.nd.as1D
 import space.kscience.kmath.nd.as2D
 import space.kscience.kmath.structures.toDoubleArray
+import kotlin.test.Ignore
 import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertTrue
@@ -47,7 +49,7 @@ class TestDoubleTensor {
         }
     }
 
-    @Test
+    @Test @Ignore
     fun toStringTest() = DoubleTensorAlgebra {
         val tensor = randNormal(intArrayOf(2,3))
         println(tensor)