diff --git a/app/src/main/java/org/ab/x48/HPView.java b/app/src/main/java/org/ab/x48/HPView.java
index 92de027..32f7677 100644
--- a/app/src/main/java/org/ab/x48/HPView.java
+++ b/app/src/main/java/org/ab/x48/HPView.java
@@ -417,7 +417,7 @@ public class HPView extends SurfaceView implements SurfaceHolder.Callback {
 	            	    	        		null, null, null, null, null, null,
 	            	    	        		"/PRINT", "/I/O", "/MODES", "/MEMORY", "/LIBRARY", "/PREV",
 	            	    	        		"UP", "DEF", "\u2192Q", "/GRAPH", "/REVIEW", "/SWAP",
-	            	    	        		" ASIN", " ACOS", " ATAN", "$x\u00B2", "$10\u207F", "$e\u207F", 
+	            	    	        		" ASIN", " ACOS", " ATAN", "$x\u00B2", "$10\u02E3", "$e\u02E3", 
 	            	    	        		"EQUATION", "EDIT", "2D", "/PURGE", "DROP",
 	            	    	        		"USER", "/SOLVE", "/PLOT", "/ALGEBRA", " ( )",
 	            	    	        		null, "/TIME", "/STAT", "/UNITS", " [ ]",
@@ -430,7 +430,7 @@ public class HPView extends SurfaceView implements SurfaceHolder.Callback {
 	            	    	        		null, null, null, null, null, null,
 	            	    	        		null, null, null, null, null, null,
 	            	    	        		"HOME", "RCL", "\u2192NUM", null, null, null,
-	            	    	        		"\u2202 ", "\u222B ", "\u2211 ", "\u207F\u221Ay ", "LOG ", "LN ",
+	            	    	        		"\u2202 ", "\u222B ", "\u2211 ", "\u02E3\u221Ay ", "LOG ", "LN ",
 	            	    	        		"MATRIX", "VISIT", "3D", null, "CLR",
 	            	    	        		"ENTRY", null, null, null, "# ",
 	            	    	        		null, null, null, null, "_ ",
@@ -443,7 +443,7 @@ public class HPView extends SurfaceView implements SurfaceHolder.Callback {
 	            	    	        		null, null, null, null, null, null,
 	            	    	        		"MTH", "PRG", "CST", "VAR", "$\u25B2", "NXT",
 	            	    	        		"'", "STO", "EVAL", "$\u25C0", "$\u25BC", "$\u25B6",
-	            	    	        		"SIN", "COS", "TAN", "\u221Ax", "y\u207F", "1/x",
+	            	    	        		"SIN", "COS", "TAN", "\u221Ax", "y\u02E3", "1/x",
 	            	    	        		"ENTER", "+/-", "EEX", "DEL", "\u2190",
 	            	    	        		"\u03B1", "7", "8", "9", "\u00F7",
 	            	    	        		"$\u21B6", "4", "5", "6", "\u00D7",
@@ -458,7 +458,7 @@ public class HPView extends SurfaceView implements SurfaceHolder.Callback {
 	            	    	        		null, null, null, null, null, null,
 	            	    	        		"RAD", null, null, null, null, "PREV",
 	            	    	        		"UP", "DEF", "NUM", "/PICTURE", "/VIEW", "/SWAP",
-	            	    	        		"ASIN", "ACOS", "ATAN", "x\u00B2", "10\u207F", "e\u207F", 
+	            	    	        		"ASIN", "ACOS", "ATAN", "x\u00B2", "10\u02E3", "e\u02E3", 
 	            	    	        		"EQUATION", "EDIT", "PURG", "/CLEAR", "/DROP",
 	            	    	        		"USER", null, null, null, "( )",
 	            	    	        		null, null, null, null, "[ ]",
@@ -471,7 +471,7 @@ public class HPView extends SurfaceView implements SurfaceHolder.Callback {
 	            	    	        		null, null, null, null, null, null,
 	            	    	        		"POLAR", "/CHARS", "/MODES", "/MEMORY", "/STACK", "MENU",
 	            	    	        		"HOME", "RCL", "UNDO", null, null, null,
-	            	    	        		"\u2202", "\u222B", "\u2211", "\u207F\u221Ay", "LOG", "LN",
+	            	    	        		"\u2202", "\u222B", "\u2211", "\u02E3\u221Ay", "LOG", "LN",
 	            	    	        		"MATRIX", "CMD", "ARG", null, null,
 	            	    	        		"ENTRY", "/SOLVE", "/PLOT", "/SYMBOLIC", "#",
 	            	    	        		null, "/TIME", "/STAT", "/UNITS", "_",
@@ -484,7 +484,7 @@ public class HPView extends SurfaceView implements SurfaceHolder.Callback {
 	            	    	        		null, null, null, null, null, null,
 	            	    	        		"MTH", "PRG", "CST", "VAR", "$\u25B2", "NXT",
 	            	    	        		"'", "STO", "EVAL", "$\u25C0", "$\u25BC", "$\u25B6",
-	            	    	        		"SIN", "COS", "TAN", "\u221Ax", "y\u207F", "1/x",
+	            	    	        		"SIN", "COS", "TAN", "\u221Ax", "y\u02E3", "1/x",
 	            	    	        		"ENTER", "+/-", "EEX", "DEL", "\u2190",
 	            	    	        		"\u03B1", "7", "8", "9", "\u00F7",
 	            	    	        		"$\u21B6", "4", "5", "6", "\u00D7",
@@ -1207,4 +1207,4 @@ public class HPView extends SurfaceView implements SurfaceHolder.Callback {
 		}
 	}
 	
-}
\ No newline at end of file
+}