Complex formular in sensor template

Configuration
1

Hi, how do i setup this calculation as sensor template.
This code ist writen for esp8266

float taupunkt(float t, float r) {
  
float a, b;
  
  if (t >= 0) {
    a = 7.5;
    b = 237.3;
  } else if (t < 0) {
    a = 7.6;
    b = 240.7;
  }
  
  // Sättigungsdampfdruck in hPa
  float sdd = 6.1078 * pow(10, (a*t)/(b+t));
  
  // Dampfdruck in hPa
  float dd = sdd * (r/100);
  
  // v-Parameter
  float v = log10(dd/6.1078);
  
  // Taupunkttemperatur (°C)
  float tt = (b*v) / (a-v);
  return { tt };  
}

t and r are existing entities of a temperatur and humidity sensor.

Thank you in advance, i am really lost how to write this as template
2 
state: >
  {% set t = states('sensor.temperature')|float(0) %}
  {% set r = states('sensor.humidity')|float(0) %}
  {% if t >= 0 %}
    {% set a = 7.5 %}
    {% set b = 237.3 %}
  {% else %}
    {% set a = 7.6 %}
    {% set b = 240.7 %}
  {% endif %}
  {% set sdd = 6.1078 * (10**(a*t)/(b+t))) %}
  {% set dd = sdd * (r/100) %}
  {% set v = log(dd/6.1078,10) %}
  {% set tt = (b*v) / (a-v) %}
  {{ tt }}
availability: "{{ has_value('sensor.temperature') and has_value('sensor.humidity') }}"
3

Thank Tom, working like a charm! One missing ( in this expression

{% set sdd = 6.1078 * (10**((a*t)/(b+t))) %}
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