Fix a typo in a comment.

diff --git a/gamma_expansion_effect.cpp b/gamma_expansion_effect.cpp
index efec55379740d8253ff9eeccbd95bbb6847c132f..9025b0b9ac767731d3bb60806fb9372e8b2ef6cc 100644 (file)
--- a/gamma_expansion_effect.cpp
+++ b/gamma_expansion_effect.cpp
@@ -32,7 +32,7 @@ void GammaExpansionEffect::set_gl_state(GLuint glsl_program_num, const std::stri
        // very low values (up to some β) are linear. Above β, we have a power curve
        // that looks like this:
        //
        // very low values (up to some β) are linear. Above β, we have a power curve
        // that looks like this:
        //

-       //   y = ((x + ɑ - 1) / ɑ)^β
+       //   y = ((x + ɑ - 1) / ɑ)^ɣ

        //
        // However, pow() is relatively slow in GLSL, so we approximate this
        // part by a minimax polynomial, whose coefficients are precalculated
        //
        // However, pow() is relatively slow in GLSL, so we approximate this
        // part by a minimax polynomial, whose coefficients are precalculated