"The inverse Fourier transform is a mathematical formula that converts a signal in the frequency domain ω to one in the time (or spatial) domain t."
"A time domain signal f(t) is obtained by demodulating a frequency domain signal F(ω) using a special sinusoidal wave ejωt across all time (from negative infinity to positive infinity) via:"
"f(t) = [1/(2 π)] · ∫ F(ω) · ejωt dω"
"j represents a square root of -1(an imaginary number); ejωt is a sinusoidal wave with an imaginary component as per Euler's formula:"
"ejωt = cos(ωt) + j · sin(ωt)"
"j represents a square root of -1(an imaginary number); ejωt is a sinusoidal wave with an imaginary component as per Euler's formula:"