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 4 added 120 characters in body edited Jul 6 at 20:17 Aakash Gupta 322 bronze badges I am trying to find coefficient of an exponent term in an expression. For example, consider tt = E^(I*T0*(ω+σ));  Doing Coefficient[tt, E^(I*T0*(ω+σ))] (* 1 *)  gives 1. However, Coefficient[tt, E^(I*T0*ω)] (* 0 *)  this returns 0. How do I obtain $$e^{i*T0*\sigma}$$ as output instead of $$0$$? I thought PowerExpand will work, but it also did not. I couldn't find the command to expand exponents. PS: The expression tt is just a dummy expression, my original expression is really big and contains a lot of terms. I am trying to find coefficient of an exponent term in an expression. For example, consider tt = E^(I*T0*(ω+σ));  Doing Coefficient[tt, E^(I*T0*(ω+σ))] (* 1 *)  gives 1. However, Coefficient[tt, E^(I*T0*ω)] (* 0 *)  this returns 0. How do I obtain $$e^{i*T0*\sigma}$$ as output instead of $$0$$? I thought PowerExpand will work, but it also did not. I couldn't find the command to expand exponents. I am trying to find coefficient of an exponent term in an expression. For example, consider tt = E^(I*T0*(ω+σ));  Doing Coefficient[tt, E^(I*T0*(ω+σ))] (* 1 *)  gives 1. However, Coefficient[tt, E^(I*T0*ω)] (* 0 *)  this returns 0. How do I obtain $$e^{i*T0*\sigma}$$ as output instead of $$0$$? I thought PowerExpand will work, but it also did not. I couldn't find the command to expand exponents. PS: The expression tt is just a dummy expression, my original expression is really big and contains a lot of terms. 3 deleted 51 characters in body edited Jul 6 at 18:39 Roman 15.9k11 gold badge2222 silver badges5555 bronze badges I am trying to find coefficient of an exponent term in an expression. For example, consider in: $$tt = e^{i*T0*(\omega + \sigma)};$$ tt = E^(I*T0*(ω+σ));  Doing in: $$\text{Coefficient}[tt, e^{i*T0*(\omega + \sigma)}]$$ out: 1 Coefficient[tt, E^(I*T0*(ω+σ))] (* 1 *)  gives 1. However, in: $$\text{Coefficient}[tt, e^{i*T0*\omega}]$$ out: 0 Coefficient[tt, E^(I*T0*ω)] (* 0 *)  this returns $$0$$0. How do I obtain $$e^{i*T0*\sigma}$$ as output instead of $$0$$? I thought PowerExpandPowerExpand will work, but it also did not. I couldn't find the command to expand exponents  . I am trying to find coefficient of an exponent term in an expression. For example, consider in: $$tt = e^{i*T0*(\omega + \sigma)};$$ Doing in: $$\text{Coefficient}[tt, e^{i*T0*(\omega + \sigma)}]$$ out: 1 gives 1. However, in: $$\text{Coefficient}[tt, e^{i*T0*\omega}]$$ out: 0 this returns $$0$$. How do I obtain $$e^{i*T0*\sigma}$$ as output instead of $$0$$? I thought PowerExpand will work, but it also did not. I couldn't find the command to expand exponents   I am trying to find coefficient of an exponent term in an expression. For example, consider tt = E^(I*T0*(ω+σ));  Doing Coefficient[tt, E^(I*T0*(ω+σ))] (* 1 *)  gives 1. However, Coefficient[tt, E^(I*T0*ω)] (* 0 *)  this returns 0. How do I obtain $$e^{i*T0*\sigma}$$ as output instead of $$0$$? I thought PowerExpand will work, but it also did not. I couldn't find the command to expand exponents. 2 edited body edited Jul 6 at 17:37 Aakash Gupta 322 bronze badges I am trying to find coefficient of an exponent term in an expression. For example, consider in: $$tt = e^{i*T0*(\omega + \sigma)};$$ Doing in: $$\text{Coefficient}[tt, e^{i*T0*(\omega + \sigma)}]$$ out: 1 gives 1. However, in: $$\text{Coefficient}[tt, e^{i*T0*\omega}]$$ out: 0 this returns $$0$$. How do I obtain $$e^{i*T0*\sigma}$$ as output instead of $$0$$? I thought PowerExpand will work, but isit also did not. I couldn't find the command to expand exponents I am trying to find coefficient of an exponent term in an expression. For example, consider in: $$tt = e^{i*T0*(\omega + \sigma)};$$ Doing in: $$\text{Coefficient}[tt, e^{i*T0*(\omega + \sigma)}]$$ out: 1 gives 1. However, in: $$\text{Coefficient}[tt, e^{i*T0*\omega}]$$ out: 0 this returns $$0$$. How do I obtain $$e^{i*T0*\sigma}$$ as output instead of $$0$$? I thought PowerExpand will work, but is also did not. I couldn't find the command to expand exponents I am trying to find coefficient of an exponent term in an expression. For example, consider in: $$tt = e^{i*T0*(\omega + \sigma)};$$ Doing in: $$\text{Coefficient}[tt, e^{i*T0*(\omega + \sigma)}]$$ out: 1 gives 1. However, in: $$\text{Coefficient}[tt, e^{i*T0*\omega}]$$ out: 0 this returns $$0$$. How do I obtain $$e^{i*T0*\sigma}$$ as output instead of $$0$$? I thought PowerExpand will work, but it also did not. I couldn't find the command to expand exponents 1 asked Jul 6 at 17:29 Aakash Gupta 322 bronze badges