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The formula to calculate the resolution from the unit cell dimensions <math>a, b, c, \alpha, \beta, \gamma</math> looks a little appaling: | The formula to calculate the resolution from the unit cell dimensions <math>a, b, c, \alpha, \beta, \gamma</math> looks a little appaling: | ||
<math>\frac{1}{r^2} \frac{1}{\sin^2\beta - \sin^2\alpha} \left( \frac{l}{c} - \frac{k\cos \alpha}{b} - \frac{h\cos \beta}{a}\right)^2 + \left( \frac{ak-bh\cos\gamma}{ab\sin\gamma}\right)^2 + \frac{h^2}{a^2}</math>. | <math>\frac{1}{r^2} = \frac{1}{\sin^2\beta - \sin^2\alpha} \left( \frac{l}{c} - \frac{k\cos \alpha}{b} - \frac{h\cos \beta}{a}\right)^2 + \left( \frac{ak-bh\cos\gamma}{ab\sin\gamma}\right)^2 + \frac{h^2}{a^2}</math>. | ||
When the [[spacegroup]] is orthorombic, however, this formula simplifies to | When the [[spacegroup]] is orthorombic, however, this formula simplifies to | ||
<math> \frac{1}{r^2} = \frac{h^2}{a^2} + \frac{k^2}{b^2} + \frac{l^2}{c^2}</math>. | <math> \frac{1}{r^2} = \frac{h^2}{a^2} + \frac{k^2}{b^2} + \frac{l^2}{c^2}</math>. | ||