PT_100
we have a negative T^4 calculus on R="20.656463566"...
our initial guess is -256.000000000 C...
iteration 0: T="-256.000000000 C" : R would give "-6.320683926", difference is "-26.9771 OHM" = "-130.599 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 1: T="-128.000000000 C" : R would give "48.834761561", difference is "28.1783 OHM" = "136.414 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 2: T="-192.000000000 C" : R would give "21.978155098", difference is "1.32169 OHM" = "6.39844 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 3: T="-224.000000000 C" : R would give "8.046016572", difference is "-12.6104 OHM" = "-61.0484 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 4: T="-208.000000000 C" : R would give "15.061369709", difference is "-5.59509 OHM" = "-27.0864 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 5: T="-200.000000000 C" : R would give "18.531489800", difference is "-2.12497 OHM" = "-10.2872 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 6: T="-196.000000000 C" : R would give "20.257682350", difference is "-0.398781 OHM" = "-1.93054 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 7: T="-194.000000000 C" : R would give "21.118624846", difference is "0.462161 OHM" = "2.23737 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 8: T="-195.000000000 C" : R would give "20.688331229", difference is "0.0318677 OHM" = "0.154275 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 9: T="-195.500000000 C" : R would give "20.473051335", difference is "-0.183412 OHM" = "-0.887917 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 10: T="-195.250000000 C" : R would give "20.580702401", difference is "-0.0757612 OHM" = "-0.366767 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 11: T="-195.125000000 C" : R would give "20.634519593", difference is "-0.021944 OHM" = "-0.106233 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 12: T="-195.062500000 C" : R would give "20.661426105", difference is "0.00496254 OHM" = "0.0240241 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 13: T="-195.093750000 C" : R would give "20.647973022", difference is "-0.00849054 OHM" = "-0.0411036 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 14: T="-195.078125000 C" : R would give "20.654699607", difference is "-0.00176396 OHM" = "-0.0085395 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 15: T="-195.070312500 C" : R would give "20.658062867", difference is "0.0015993 OHM" = "0.00774238 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 16: T="-195.074218750 C" : R would give "20.656381240", difference is "-8.23263e-05 OHM" = "-0.00039855 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 17: T="-195.072265625 C" : R would give "20.657222054", difference is "0.000758488 OHM" = "0.00367192 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 18: T="-195.073242188 C" : R would give "20.656801647", difference is "0.000338081 OHM" = "0.00163668 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 19: T="-195.073730469 C" : R would give "20.656591443", difference is "0.000127877 OHM" = "0.000619067 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 20: T="-195.073974609 C" : R would give "20.656486342", difference is "2.27756e-05 OHM" = "0.000110259 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 21: T="-195.074096680 C" : R would give "20.656433791", difference is "-2.97753e-05 OHM" = "-0.000144145 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 22: T="-195.074035645 C" : R would give "20.656460066", difference is "-3.49987e-06 OHM" = "-1.69432e-05 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 23: T="-195.074005127 C" : R would give "20.656473204", difference is "9.63786e-06 OHM" = "4.66578e-05 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 24: T="-195.074020386 C" : R would give "20.656466635", difference is "3.06899e-06 OHM" = "1.48573e-05 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 25: T="-195.074028015 C" : R would give "20.656463351", difference is "-2.15441e-07 OHM" = "-1.04297e-06 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 26: T="-195.074024200 C" : R would give "20.656464993", difference is "1.42678e-06 OHM" = "6.90716e-06 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 27: T="-195.074026108 C" : R would give "20.656464172", difference is "6.05667e-07 OHM" = "2.93209e-06 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 28: T="-195.074027061 C" : R would give "20.656463761", difference is "1.95113e-07 OHM" = "9.44561e-07 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 29: T="-195.074027538 C" : R would give "20.656463556", difference is "-1.01643e-08 OHM" = "-4.92062e-08 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 30: T="-195.074027300 C" : R would give "20.656463658", difference is "9.24743e-08 OHM" = "4.47677e-07 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 31: T="-195.074027419 C" : R would give "20.656463607", difference is "4.1155e-08 OHM" = "1.99236e-07 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 32: T="-195.074027479 C" : R would give "20.656463581", difference is "1.54954e-08 OHM" = "7.50147e-08 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 33: T="-195.074027508 C" : R would give "20.656463569", difference is "2.66557e-09 OHM" = "1.29043e-08 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 34: T="-195.074027523 C" : R would give "20.656463562", difference is "-3.74934e-09 OHM" = "-1.81509e-08 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 35: T="-195.074027516 C" : R would give "20.656463565", difference is "-5.41881e-10 OHM" = "-2.6233e-09 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 36: T="-195.074027512 C" : R would give "20.656463567", difference is "1.06184e-09 OHM" = "5.14049e-09 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 37: T="-195.074027514 C" : R would give "20.656463566", difference is "2.5998e-10 OHM" = "1.25859e-09 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 38: T="-195.074027515 C" : R would give "20.656463566", difference is "-1.40957e-10 OHM" = "-6.82387e-10 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 39: T="-195.074027515 C" : R would give "20.656463566", difference is "5.95044e-11 OHM" = "2.88058e-10 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 40: T="-195.074027515 C" : R would give "20.656463566", difference is "-4.07248e-11 OHM" = "-1.97153e-10 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 41: T="-195.074027515 C" : R would give "20.656463566", difference is "9.39693e-12 OHM" = "4.54969e-11 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 42: T="-195.074027515 C" : R would give "20.656463566", difference is "-1.56639e-11 OHM" = "-7.58282e-11 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 43: T="-195.074027515 C" : R would give "20.656463566", difference is "-3.1406e-12 OHM" = "-1.5199e-11 %"
Our R_T is less than input R, so our temperature is less than it is...
iteration 44: T="-195.074027515 C" : R would give "20.656463566", difference is "3.13349e-12 OHM" = "1.51656e-11 %"
Our R_T is more than than input R, so our temperature is more than it is...
iteration 45: T="-195.074027515 C" : R would give "20.656463566", difference is "3.55271e-15 OHM" = "2.22045e-14 %"
We have our precision (1e-13), exit function!