print("-210e3 is ", -210e3, "\n")
	}

	if !close(0E-1, 0, 1, 0) {
		print("0E-1 is ", 0E-1, "\n")
	}
	if !close(+0e23, 0, 1, 1) {
		print("+0e23 is ", +0e23, "\n")
	}
	if !close(-0e345, 0, 1, 1) {
		print("-0e345 is ", -0e345, "\n")
	}

	if !close(0E1, 0, 1, 1) {
		print("0E1 is ", 0E1, "\n")
	}
	if !close(+10e23, 10, 1, 23) {
		print("+10e23 is ", +10e23, "\n")
	}
	if !close(-210e34, -210, 1, 34) {

		"1.2e34",
		"1.2E-0",
		"1.2e+1",
		"1.2e-34",
		"-1.2E0",
		"-1.2E1",
		"-1.2e34",
		"-1.2E-0",
		"-1.2e+1",
		"-1.2e-34",
		"0E0",
		"0E1",
		"0e34",
		"0E-0",
		"0e+1",
		"0e-34",
		"-0E0",
		"-0E1",
		"-0e34",
		"-0E-0",
		"-0e+1",
		"-0e-34",
	}

	for _, test := range validTests {
		if !isValidNumber(test) {
			t.Errorf("%s should be valid", test)
		}