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2020-10-31 21:44:52 +07:00 · 2020-10-31 21:44:52 +07:00 · 658a1703ed
commit 658a1703ed
parent 6b71d8525d
1 changed files with 3 additions and 0 deletions
--- a/kmath-core/src/commonMain/kotlin/kscience/kmath/expressions/DifferentiableExpression.kt
+++ b/kmath-core/src/commonMain/kotlin/kscience/kmath/expressions/DifferentiableExpression.kt
@ -9,6 +9,9 @@ package kscience.kmath.expressions
 public interface DifferentiableExpression<T, R : Expression<T>> : Expression<T> {
    /**
     * Differentiates this expression by ordered collection of [symbols].
+     *
+     * @param symbols the symbols.
+     * @return the derivative or `null`.
     */
    public fun derivativeOrNull(symbols: List<Symbol>): R?
 }