Question: User: ccepted characters: numbers, decimal point markers, sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.
Complex numbers should be in the form {a + bi} where "a" and "b" need to have explicitly stated values.
For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
1. The user message describes the accepted format for complex numbers and numeric input, but it does not pose a specific math problem to solve.
2. Since there is no explicit question or problem, there is no calculation or formula to apply.
3. If you have a specific math problem or question related to complex numbers or scientific notation, please provide it so I can assist you accordingly.