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This reverts commit b6c133108010e7ef3d501f362e12d05af71b765c.

Conflicts:
	calc/AndroidManifest.xml
	calc/src/com/example/calc/MainActivity.java
	calc/src/com/example/calc/Sci.java
Revert "i have added a new activity for scientific calculation"
sad
This reverts commit b6c133108010e7ef3d501f362e12d05af71b765c.

Conflicts:
	calc/AndroidManifest.xml
	calc/src/com/example/calc/MainActivity.java
	calc/src/com/example/calc/Sci.java
Revert "i have added a new activity for scientific calculation"

popopopopop
This reverts commit b6c133108010e7ef3d501f362e12d05af71b765c.

Conflicts:
	calc/AndroidManifest.xml
	calc/src/com/example/calc/MainActivity.java
	calc/src/com/example/calc/Sci.java