11-20 20:06:55.494: D/libEGL(2452): loaded /system/lib/egl/libEGL_mali.so
11-20 20:06:55.529: D/libEGL(2452): loaded /system/lib/egl/libGLESv1_CM_mali.so
11-20 20:06:55.534: D/libEGL(2452): loaded /system/lib/egl/libGLESv2_mali.so
11-20 20:06:55.539: E/(2452): Device driver API match
11-20 20:06:55.539: E/(2452): Device driver API version: 23
11-20 20:06:55.539: E/(2452): User space API version: 23 
11-20 20:06:55.539: E/(2452): mali: REVISION=Linux-r3p2-01rel3 BUILD_DATE=Wed Oct  9 21:05:57 KST 2013 
11-20 20:06:55.674: D/OpenGLRenderer(2452): Enabling debug mode 0
11-20 20:07:07.294: D/AndroidRuntime(2452): Shutting down VM
11-20 20:07:07.294: W/dalvikvm(2452): threadid=1: thread exiting with uncaught exception (group=0x41c63700)
11-20 20:07:07.304: E/AndroidRuntime(2452): FATAL EXCEPTION: main
11-20 20:07:07.304: E/AndroidRuntime(2452): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.calculadoraresuelvederivadas/com.example.calculadoraresuelvederivadas.Calculadora}: java.lang.NullPointerException
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2295)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2349)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.app.ActivityThread.access$700(ActivityThread.java:159)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1316)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.os.Handler.dispatchMessage(Handler.java:99)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.os.Looper.loop(Looper.java:176)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.app.ActivityThread.main(ActivityThread.java:5419)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at java.lang.reflect.Method.invokeNative(Native Method)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at java.lang.reflect.Method.invoke(Method.java:525)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at dalvik.system.NativeStart.main(Native Method)
11-20 20:07:07.304: E/AndroidRuntime(2452): Caused by: java.lang.NullPointerException
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at com.example.calculadoraresuelvederivadas.Calculadora.onCreate(Calculadora.java:740)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.app.Activity.performCreate(Activity.java:5372)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1104)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2257)
11-20 20:07:07.304: E/AndroidRuntime(2452): 	... 11 more
