ts  contributions to 
tds Delta S
td  \fRdata
tdm \fRdata and folded model
tr  data/model
tf  folded model
ti integrated counts and folded model
trs  residuals
te Total Efficiency
tm Current Theoretical Model
tu Unfolded Spectrum
tx Sensitivity
ty Insensitivity
tC1 Confidence region:
tC2 Confidence contours: 
tM1 Probability region
tM2 Probability contours
tR Results:

xc Channel
xe Energy (keV)
xw Wavelength (\A)
xC Parameter:
xCr chain step
xT Temperature (keV)

normArea cm\u-2\d
ycc counts chan\u-1\d
yce counts keV\u-1\d
ycw counts \A\u-1\d
yic normalized integrated counts 
yie normalized integrated counts
yiw normalized integrated counts
ydc normalized counts s\u-1\d chan\u-1\d
yde normalized counts s\u-1\d keV\u-1\d 
ydw normalized counts s\u-1\d \A\u-1\d 
yee Effective Area (cm\u2\d)
yew Effective Area (cm\u2\d)
yr  ratio
ys  sign(data-model) \x \gD
yds \gDS
yme Photons cm\u-2\d s\u-1\d keV\u-1\d
ymw Photons cm\u-2\d s\u-1\d \A\u-1\d
yne keV (Photons cm\u-2\d s\u-1\d keV\u-1\d)
ynw keV (Photons cm\u-2\d s\u-1\d \A\u-1\d)
yoe keV\u2\d (Photons cm\u-2\d s\u-1\d keV\u-1\d)
yow keV\u2\d (Photons cm\u-2\d s\u-1\d \A\u-1\d)
yue Photons cm\u-2\d s\u-1\d keV\u-1\d
yuw Photons cm\u-2\d s\u-1\d \A\u-1\d
yve keV (Photons cm\u-2\d s\u-1\d keV\u-1\d)
yvw keV (Photons cm\u-2\d s\u-1\d \A\u-1\d)
ywe keV\u2\d (Photons cm\u-2\d s\u-1\d keV\u-1\d)
yww keV\u2\d (Photons cm\u-2\d s\u-1\d \A\u-1\d)
yx  \gD\gx\u2\d /\gD ln E for fractional change in model flux
yy  \gDFlux (\gmJy keV) to produce \gD\gx\u2\d = 1
yC  Statistic:  
yM  Probability
yem Emission Measure