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-rw-r--r--src/main/java/io/github/moulberry/notenoughupdates/util/Calculator.java5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/main/java/io/github/moulberry/notenoughupdates/util/Calculator.java b/src/main/java/io/github/moulberry/notenoughupdates/util/Calculator.java
index a58fc8a6..0762d107 100644
--- a/src/main/java/io/github/moulberry/notenoughupdates/util/Calculator.java
+++ b/src/main/java/io/github/moulberry/notenoughupdates/util/Calculator.java
@@ -299,6 +299,11 @@ public class Calculator {
Token rightToken = rpnTokens.get(rpnTokens.indexOf(command) - 1);
throw new CalculatorException(right + " has a decimal, pick a power that is non-decimal", rightToken.tokenStart, rightToken.tokenLength);
}
+
+ if (right.doubleValue() < 0) {
+ Token rightToken = rpnTokens.get(rpnTokens.indexOf(command) - 1);
+ throw new CalculatorException(right + " is a negative number, pick a power that is positive", rightToken.tokenStart, rightToken.tokenLength);
+ }
values.push(left.pow(right.intValue()).setScale(2, RoundingMode.HALF_UP));
break;
case "x":