Hi,

I did some further study, especially of the note about math functions

that Sheri referred to (from 2003) and finally got the clip to

calculate the frequency in scientific notation. I took the logarithm

of the calculated frequency, used the FLOOR function to round the log

down to an integer, and divided the result by that power of 10 to get

scientific notation.

The prompts (now commented out) helped me verify each step of the

calculation.

Yours,

Michael F.

==========

H="Wavelength -> Frequency"

^!Set %wavelength%=^?[Enter the wavelength (cm)]

;^!Prompt ^%wavelength% cm

^!Set %frequency%=^$Calc(2.9979245800e10/^%wavelength%)$

;^!Prompt ^%wavelength% cm = ^%frequency% cycles/sec.

^!Set %log_frequency%=^$Calc(FLOOR(LOG10(^%frequency%)))$

;^!Prompt ^%log_frequency%

^!Prompt ^%wavelength% cm = ^$Calc(^%frequency%/1e^%log_frequency%;3)

$ x 10^^%log_frequency% cycles/sec (scientific notation)