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| -rw-r--r-- | Fourier Series.page | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Fourier Series.page b/Fourier Series.page index 3e450d3..91bad7a 100644 --- a/Fourier Series.page +++ b/Fourier Series.page @@ -49,7 +49,7 @@ $$ Thus, we see that both these functions could be expressed as sums of sines and cosines. It is possible to show that every product of trignometric functions can be expressed as a sum of sines and cosines: $$ -\begin{arary}{ccl} +\begin{array}{ccl} e^{i\theta} & = & \cos \theta + i \sin \theta\\ \end{array} $$ |