test_exp = ->
	run_test [

		"exp(-3/4*i*pi)",
		#"exp(-3/4*i*pi)",
		"-1/2*2^(1/2)-1/2*i*2^(1/2)",

		"simplify(exp(-3/4*i*pi))",
		#"exp(-3/4*i*pi)",
		#"-1/2*2^(1/2)-1/2*i*2^(1/2)",
		"-(1+i)/(2^(1/2))",

	]