Thermometer on 7-Segment display

Hi,

i'm currently playing with multiplexing and i started with this project:

Everything works fine but I like to add one 7 segment displaywith a shift register to show the digit after the . for example 25.3 °C. instead of just 25°C.
Can someone help me with the code?

thanks very much

regards

I'd probably start with

float t = tempSens.getTempCByIndex(0)*10;

Then the main loop() would need an extra step to separate out the third digit.

Then I'd modify displayNumb() to take 3 arguments and use 3 shiftOut()s instead of two. It'd be good to make it also insert the dot in the right place (I think this is addressed through high bit of the middle digit).