किसी व्यंजक या फलन का अवकलज निकालना अवकलन की प्राथमिक क्रिया है। नीचे बहुत से फलनों के अवकलज या अवकल गुणांक दिए गए हैं। इनमे ƒ एवं g, x के सापेक्ष अवकलनीय फलन हैं; c कोई वास्तविक संख्या है।
अवकलन के सामान्य नियम
- रेखीयता


- गुणन नियम

- भाग का नियम

- शृंखला नियम

कुछ सरल फलनों के अवकलन गुणांक














त्रिकोणमितीय फलनों के अवकल गुणांक












हाइपरबोलिक फलनों के अवकल गुणांक












यदि वास्तविक अर्गुमेन्ट वाले किसी भी अवकलनीय फलन f के लिये इन्वर्स और अन्य यौगिक क्रियाएं अस्तित्व रखती हैं तो,

इन्हें भी देखें