a = float(input("Enter a number to fnd its Secant in Radians: "))
cal.secrad(a)
time.sleep(2)
menu()
except:
exception()
elif choice == 10:
try:
a = float(input("Enter a number to find its Cot in Radians: "))
cal.cotrad(a)
time.sleep(2)
menu()
except:
exception()
elif choice == 11:
cal._pi()
elif choice == 12:
try:
a = float(input("Enter a number to find its Sine in Degrees: "))
cal.sindeg(a)
time.sleep(2)
menu()
except:
exception()
elif choice == 13:
try:
a = float(input("Enter a number to find its Cosine in Degrees: "))
cal.cosdeg(a)
time.sleep(2)
menu()
except:
